To understand the fattening performance of Duroc x Landrace×Yorkshire and Duroc×Yorkshire x landrace, 48 individuals of two kinds of three-way crossbreeding lean type commercial pigs were selected to determi...To understand the fattening performance of Duroc x Landrace×Yorkshire and Duroc×Yorkshire x landrace, 48 individuals of two kinds of three-way crossbreeding lean type commercial pigs were selected to determine average daily feed intake, average daily gain and feed gain ratio. The backtat thickness and eye muscle area of pigs were measured at the end of trial. The results showed that Duroc × Landraee × Yorkshire and Dttroc × Yorkshire x Landrace had similar fattening performance, and could be applied under scientific management conditions. The study is of great significance for development of pig industry.展开更多
Three-way concept analysis is an important tool for information processing,and rule acquisition is one of the research hotspots of three-way concept analysis.However,compared with three-way concept lattices,three-way ...Three-way concept analysis is an important tool for information processing,and rule acquisition is one of the research hotspots of three-way concept analysis.However,compared with three-way concept lattices,three-way semi-concept lattices have three-way operators with weaker constraints,which can generate more concepts.In this article,the problem of rule acquisition for three-way semi-concept lattices is discussed in general.The authors construct the finer relation of three-way semi-concept lattices,and propose a method of rule acquisition for three-way semi-concept lattices.The authors also discuss the set of decision rules and the relationships of decision rules among object-induced three-way semi-concept lattices,object-induced three-way concept lattices,classical concept lattices and semi-concept lattices.Finally,examples are provided to illustrate the validity of our conclusions.展开更多
Three-way decision(T-WD)theory is about thinking,problem solving,and computing in threes.Behavioral decision making(BDM)focuses on effective,cognitive,and social processes employed by humans for choosing the optimal o...Three-way decision(T-WD)theory is about thinking,problem solving,and computing in threes.Behavioral decision making(BDM)focuses on effective,cognitive,and social processes employed by humans for choosing the optimal object,of which prospect theory and regret theory are two widely used tools.The hesitant fuzzy set(HFS)captures a series of uncertainties when it is difficult to specify precise fuzzy membership grades.Guided by the principles of three-way decisions as thinking in threes and integrating these three topics together,this paper reviews and examines advances in three-way behavioral decision making(TW-BDM)with hesitant fuzzy information systems(HFIS)from the perspective of the past,present,and future.First,we provide a brief historical account of the three topics and present basic formulations.Second,we summarize the latest development trends and examine a number of basic issues,such as one-sidedness of reference points and subjective randomness for result values,and then report the results of a comparative analysis of existing methods.Finally,we point out key challenges and future research directions.展开更多
The reproduction characteristics of 343 sows in six different breeding groups were analyzed to estimate the crossbreeding parameters. The results indicated that the ovulation rate and the weights of uterus and ovary a...The reproduction characteristics of 343 sows in six different breeding groups were analyzed to estimate the crossbreeding parameters. The results indicated that the ovulation rate and the weights of uterus and ovary are mainly determined by the additive genetic effects while the nonadditive genetic effects play an important role in embryonal traits and litter performance. The heterosis effects in the first litter are larger than those in the second litter because of heterosis x environment interaction. The results also showed the existence of a highly significant maternal heterosis effect on the fertility traits of sows.展开更多
The carried out experimental work aimed at the improvement of the native rabbit zootechnical performances. The goal was to run a genetical progress of an exotic breed ＂the Californian＂ through a crossbreeding with a...The carried out experimental work aimed at the improvement of the native rabbit zootechnical performances. The goal was to run a genetical progress of an exotic breed ＂the Californian＂ through a crossbreeding with a native rabbit. Ten females have been crossed with two native males （L × C） compared to controls Native × Native （N × N） and Californian × Californian （C × C）. The reproduction and growth performances are clearly improved by crossbreeding effect, the recorded heterosis are： 9.43%, 16.34% and 21.93%, respectively for the alive litter size, alive and weaned; 10%, 16.75% and 2.57%, respectively for the alive litter weight, alive and weaned; 2.57% for the individual weight at birth; 10% and 7% for post weaning performances, respectively day mean gains and feed conversion ratio. Weight at slaughter is improved with 167 g, which representing a considerable level for the native population. Genetic crossbreeding between the Algerian native rabbit and the Californian, raised under rearing conditions of the Blida university farm experiment showed its efficiency on the most zootechnical performances. The complementary effect turned up positively on the crossbred rabbits Their post-weaning growth performance is comparable to those of the Californian with a better viability at weaning and slaughtering age.展开更多
Based on linguistic evaluations, a linguistic threeway decision method is proposed. First, the alternatives are rated in linguistic forms and divided into acceptance, rejection and uncertainty regions. Secondly, the l...Based on linguistic evaluations, a linguistic threeway decision method is proposed. First, the alternatives are rated in linguistic forms and divided into acceptance, rejection and uncertainty regions. Secondly, the linguistic three-way group decision steps are provided. Specifically, the experts determine the lower bound and upper bound of the uncertainty region, respectively. When the evaluation is superior to the upper bound, the corresponding alternative is put into the acceptance region directly. Similarly, when the evaluation is inferior to the lower bound, the corresponding alternative is put into the rejection region directly, and the remaining alternatives are put into the uncertain region. Moreover, the objects in the uncertainty region are especially discussed. The linguistic terms are transformed into fuzzy numbers and then aggregated. Finally, a recommendation example is provided to illustrate the practicality and validity of the proposed method.展开更多
Real-time resource allocation is crucial for phased array radar to undertake multi-task with limited resources,such as the situation of multi-target tracking,in which targets need to be prioritized so that resources c...Real-time resource allocation is crucial for phased array radar to undertake multi-task with limited resources,such as the situation of multi-target tracking,in which targets need to be prioritized so that resources can be allocated accordingly and effectively.A three-way decision-based model is proposed for adaptive scheduling of phased radar dwell time.Using the model,the threat posed by a target is measured by an evaluation function,and therefore,a target is assigned to one of the three possible decision regions,i.e.,positive region,negative region,and boundary region.A different region has a various priority in terms of resource demand,and as such,a different radar resource allocation decision is applied to each region to satisfy different tracking accuracies of multi-target.In addition,the dwell time scheduling model can be further optimized by implementing a strategy for determining a proper threshold of three-way decision making to optimize the thresholds adaptively in real-time.The advantages and the performance of the proposed model have been verified by experimental simulations with comparison to the traditional twoway decision model and the three-way decision model without threshold optimization.The experiential results demonstrate that the performance of the proposed model has a certain advantage in detecting high threat targets.展开更多
Twenty castrated male goats, each of Yun-Ling Black goats （YLB goat）, N × YLB hybrid goats （Nubian ♂ ×Yun-Ling Black goats 9） and B × YLB hybrid goats （Boer ♂× Yun-Ling Black goats ♀）, wer...Twenty castrated male goats, each of Yun-Ling Black goats （YLB goat）, N × YLB hybrid goats （Nubian ♂ ×Yun-Ling Black goats 9） and B × YLB hybrid goats （Boer ♂× Yun-Ling Black goats ♀）, were used to evaluate the effect of crossbreeding on the meat chemical composition in the YLB goats of China. After weaning of 90 days, all the experimental goats were reared on natural pasture when they were slaughtered at an age of 730 days. The longissimus dorsi （LD） and biceps femoris （BF） muscles were sampled from each carcass to determine chemical compositions. Both hybrid goats had higher protein content （P 〈 0.01） and lower fat content （P 〈 0.05） than the YLB goats in the two types of muscle. The inosinic acid contents of LD muscle for the YLB goats and the B × YLB hybrid goats were significantly higher （P 〈 0.05） than that for the N × YLB hybrid goats. The LD muscle from the YLB goats contained higher essential amino acid （P 〈 0.01）, total amino acid （P 〈 0.01）, and some individual amino acid （P 〈 0.05） than those from the hybrid goats. The concentration of unsaturated fatty acid （USFA） of LD muscle from the N × YLB hybrid goats was significantly higher than the other two goat breeds （P〈0.05） but did not differ between the other two goat breeds （P〉0.05）. The YLB goats had significantly higher （P〈0.05） concentrations of oleic acid （C18：1） and linolenic acid （C18：3） of LD muscle than the hybrid goats, had significantly higher （P 〈 0.05） proportion of mono-unsaturated （Sum for C 16：1 and C 18：1） than the B ×YLB hybrid goats, and tended to be higher than the N × YLB hybrid goats （P 〉 0.05）. In contrast, the proportion of poly-unsaturated in the YLB goats was significantly lower （P 〈 0.05） than that in the hybrid goats.展开更多
Three-way pipes, T and Y pipes, are very important connecting components in pipeline systems, their strength are related to the safety of pipelines. In the case that crack is not detected in the three-way pipe, ANSYS ...Three-way pipes, T and Y pipes, are very important connecting components in pipeline systems, their strength are related to the safety of pipelines. In the case that crack is not detected in the three-way pipe, ANSYS finite element program version 5.6 is applied to study the stress distribution of the three-way pipe and to obtain the optimum fillet radius in the crotch region of the two pipes. The reasonable intersection angle of the two pipes is also obtained. In the case that a surface crack is detected in the three-way pipe, the maximum stress intensity factor (SIF) near the front of the surface crack is studied.展开更多
Oxygen storage-capacity （OSC）, oxygen buffer capacity （OBC）, X-my diffraction and electron diffraction pattern, high resolution electron microscopy were used to study the quaternary oxides, i .e., of Ce, Tb, Pr an...Oxygen storage-capacity （OSC）, oxygen buffer capacity （OBC）, X-my diffraction and electron diffraction pattern, high resolution electron microscopy were used to study the quaternary oxides, i .e., of Ce, Tb, Pr and Zr. （Ce0.6 Tb0.2Zr0.2O2- δ and Ce0.6Pr0.2Zr0.2O2-δ ）. OSC and OBC data indicate that these oxides have very good oxygen transfer capacity （OTC） and their pseudo-solid solutions exhibit fluorite-type structure. These oxides may act as a good candidate for three-way catalysts （TWC）.展开更多
The durability of three-way catalyst （TWC） and corresponding close-coupled catalyst （CCC） for Euro Ⅳ stage regulation was investigated through Vehicle Road Running Mode tests, whereas emissions of regulated pollu...The durability of three-way catalyst （TWC） and corresponding close-coupled catalyst （CCC） for Euro Ⅳ stage regulation was investigated through Vehicle Road Running Mode tests, whereas emissions of regulated pollutants of three car fleet were investigated at every 100,000 km miles. The results showed that HC, NOx, and CO emission values could meet Euro Ⅳ regulation limits at every point. The redox properties of TWC and CCC were measured by CO reduction during each isothermal. It was obvious that both aged TWC and aged CCC behaved a good redox property at 673 and 773 K. Based on XRD and BET measurement results, TWC and CCC washcoat were characterized with good thermal stability.展开更多
文摘To understand the fattening performance of Duroc x Landrace×Yorkshire and Duroc×Yorkshire x landrace, 48 individuals of two kinds of three-way crossbreeding lean type commercial pigs were selected to determine average daily feed intake, average daily gain and feed gain ratio. The backtat thickness and eye muscle area of pigs were measured at the end of trial. The results showed that Duroc × Landraee × Yorkshire and Dttroc × Yorkshire x Landrace had similar fattening performance, and could be applied under scientific management conditions. The study is of great significance for development of pig industry.
基金Central University Basic Research Fund of China,Grant/Award Number:FWNX04Ningxia Natural Science Foundation,Grant/Award Number:2021AAC03203National Natural Science Foundation of China,Grant/Award Number:61662001。
文摘Three-way concept analysis is an important tool for information processing,and rule acquisition is one of the research hotspots of three-way concept analysis.However,compared with three-way concept lattices,three-way semi-concept lattices have three-way operators with weaker constraints,which can generate more concepts.In this article,the problem of rule acquisition for three-way semi-concept lattices is discussed in general.The authors construct the finer relation of three-way semi-concept lattices,and propose a method of rule acquisition for three-way semi-concept lattices.The authors also discuss the set of decision rules and the relationships of decision rules among object-induced three-way semi-concept lattices,object-induced three-way concept lattices,classical concept lattices and semi-concept lattices.Finally,examples are provided to illustrate the validity of our conclusions.
基金supported in part by the National Natural Science Foundation of China(12271146,12161036,61866011,11961025,61976120)the Natural Science Key Foundation of Jiangsu Education Department(21KJA510004)Discovery Grant from Natural Science and Engineering Research Council of Canada(NSERC)。
文摘Three-way decision(T-WD)theory is about thinking,problem solving,and computing in threes.Behavioral decision making(BDM)focuses on effective,cognitive,and social processes employed by humans for choosing the optimal object,of which prospect theory and regret theory are two widely used tools.The hesitant fuzzy set(HFS)captures a series of uncertainties when it is difficult to specify precise fuzzy membership grades.Guided by the principles of three-way decisions as thinking in threes and integrating these three topics together,this paper reviews and examines advances in three-way behavioral decision making(TW-BDM)with hesitant fuzzy information systems(HFIS)from the perspective of the past,present,and future.First,we provide a brief historical account of the three topics and present basic formulations.Second,we summarize the latest development trends and examine a number of basic issues,such as one-sidedness of reference points and subjective randomness for result values,and then report the results of a comparative analysis of existing methods.Finally,we point out key challenges and future research directions.
文摘The reproduction characteristics of 343 sows in six different breeding groups were analyzed to estimate the crossbreeding parameters. The results indicated that the ovulation rate and the weights of uterus and ovary are mainly determined by the additive genetic effects while the nonadditive genetic effects play an important role in embryonal traits and litter performance. The heterosis effects in the first litter are larger than those in the second litter because of heterosis x environment interaction. The results also showed the existence of a highly significant maternal heterosis effect on the fertility traits of sows.
文摘The carried out experimental work aimed at the improvement of the native rabbit zootechnical performances. The goal was to run a genetical progress of an exotic breed ＂the Californian＂ through a crossbreeding with a native rabbit. Ten females have been crossed with two native males （L × C） compared to controls Native × Native （N × N） and Californian × Californian （C × C）. The reproduction and growth performances are clearly improved by crossbreeding effect, the recorded heterosis are： 9.43%, 16.34% and 21.93%, respectively for the alive litter size, alive and weaned; 10%, 16.75% and 2.57%, respectively for the alive litter weight, alive and weaned; 2.57% for the individual weight at birth; 10% and 7% for post weaning performances, respectively day mean gains and feed conversion ratio. Weight at slaughter is improved with 167 g, which representing a considerable level for the native population. Genetic crossbreeding between the Algerian native rabbit and the Californian, raised under rearing conditions of the Blida university farm experiment showed its efficiency on the most zootechnical performances. The complementary effect turned up positively on the crossbred rabbits Their post-weaning growth performance is comparable to those of the Californian with a better viability at weaning and slaughtering age.
基金The National Natural Science Foundation of China(No.71171048,71371049)the Scientific Innovation Research of College Graduates in Jiangsu Province(No.KYLX15-0190)the Scientific Research Foundation of Graduate School of Southeast University(No.YBJJ1567)
文摘Based on linguistic evaluations, a linguistic threeway decision method is proposed. First, the alternatives are rated in linguistic forms and divided into acceptance, rejection and uncertainty regions. Secondly, the linguistic three-way group decision steps are provided. Specifically, the experts determine the lower bound and upper bound of the uncertainty region, respectively. When the evaluation is superior to the upper bound, the corresponding alternative is put into the acceptance region directly. Similarly, when the evaluation is inferior to the lower bound, the corresponding alternative is put into the rejection region directly, and the remaining alternatives are put into the uncertain region. Moreover, the objects in the uncertainty region are especially discussed. The linguistic terms are transformed into fuzzy numbers and then aggregated. Finally, a recommendation example is provided to illustrate the practicality and validity of the proposed method.
基金the Aeronautical Science Foundation of China(2017ZC53021)the Open Project Fund of CETC Key Laboratory of Data Link Technology(CLDL-20182101).
文摘Real-time resource allocation is crucial for phased array radar to undertake multi-task with limited resources,such as the situation of multi-target tracking,in which targets need to be prioritized so that resources can be allocated accordingly and effectively.A three-way decision-based model is proposed for adaptive scheduling of phased radar dwell time.Using the model,the threat posed by a target is measured by an evaluation function,and therefore,a target is assigned to one of the three possible decision regions,i.e.,positive region,negative region,and boundary region.A different region has a various priority in terms of resource demand,and as such,a different radar resource allocation decision is applied to each region to satisfy different tracking accuracies of multi-target.In addition,the dwell time scheduling model can be further optimized by implementing a strategy for determining a proper threshold of three-way decision making to optimize the thresholds adaptively in real-time.The advantages and the performance of the proposed model have been verified by experimental simulations with comparison to the traditional twoway decision model and the three-way decision model without threshold optimization.The experiential results demonstrate that the performance of the proposed model has a certain advantage in detecting high threat targets.
基金funded by grants from Ministry of Science and Technology of China (2003BA766C)Yunnan Provincial Government,China (2004NG04)supported by the found for Talented Man Training in Yunnan Province,China (2008PY043)and the research found for scholar coming back from aboard of China Scholarship Council of Ministry of Education of China
文摘Twenty castrated male goats, each of Yun-Ling Black goats （YLB goat）, N × YLB hybrid goats （Nubian ♂ ×Yun-Ling Black goats 9） and B × YLB hybrid goats （Boer ♂× Yun-Ling Black goats ♀）, were used to evaluate the effect of crossbreeding on the meat chemical composition in the YLB goats of China. After weaning of 90 days, all the experimental goats were reared on natural pasture when they were slaughtered at an age of 730 days. The longissimus dorsi （LD） and biceps femoris （BF） muscles were sampled from each carcass to determine chemical compositions. Both hybrid goats had higher protein content （P 〈 0.01） and lower fat content （P 〈 0.05） than the YLB goats in the two types of muscle. The inosinic acid contents of LD muscle for the YLB goats and the B × YLB hybrid goats were significantly higher （P 〈 0.05） than that for the N × YLB hybrid goats. The LD muscle from the YLB goats contained higher essential amino acid （P 〈 0.01）, total amino acid （P 〈 0.01）, and some individual amino acid （P 〈 0.05） than those from the hybrid goats. The concentration of unsaturated fatty acid （USFA） of LD muscle from the N × YLB hybrid goats was significantly higher than the other two goat breeds （P〈0.05） but did not differ between the other two goat breeds （P〉0.05）. The YLB goats had significantly higher （P〈0.05） concentrations of oleic acid （C18：1） and linolenic acid （C18：3） of LD muscle than the hybrid goats, had significantly higher （P 〈 0.05） proportion of mono-unsaturated （Sum for C 16：1 and C 18：1） than the B ×YLB hybrid goats, and tended to be higher than the N × YLB hybrid goats （P 〉 0.05）. In contrast, the proportion of poly-unsaturated in the YLB goats was significantly lower （P 〈 0.05） than that in the hybrid goats.
文摘Three-way pipes, T and Y pipes, are very important connecting components in pipeline systems, their strength are related to the safety of pipelines. In the case that crack is not detected in the three-way pipe, ANSYS finite element program version 5.6 is applied to study the stress distribution of the three-way pipe and to obtain the optimum fillet radius in the crotch region of the two pipes. The reasonable intersection angle of the two pipes is also obtained. In the case that a surface crack is detected in the three-way pipe, the maximum stress intensity factor (SIF) near the front of the surface crack is studied.
文摘Oxygen storage-capacity （OSC）, oxygen buffer capacity （OBC）, X-my diffraction and electron diffraction pattern, high resolution electron microscopy were used to study the quaternary oxides, i .e., of Ce, Tb, Pr and Zr. （Ce0.6 Tb0.2Zr0.2O2- δ and Ce0.6Pr0.2Zr0.2O2-δ ）. OSC and OBC data indicate that these oxides have very good oxygen transfer capacity （OTC） and their pseudo-solid solutions exhibit fluorite-type structure. These oxides may act as a good candidate for three-way catalysts （TWC）.
基金supported by the 863 Program (2006AA060305)China Postdoctoral Science Foundation (20070410196)+1 种基金Jiangsu Province Planned Projects for Postdoctoral Research Funds (0702054C)Jiangsu Province Natural Science Fund (BK2008532)
文摘The durability of three-way catalyst （TWC） and corresponding close-coupled catalyst （CCC） for Euro Ⅳ stage regulation was investigated through Vehicle Road Running Mode tests, whereas emissions of regulated pollutants of three car fleet were investigated at every 100,000 km miles. The results showed that HC, NOx, and CO emission values could meet Euro Ⅳ regulation limits at every point. The redox properties of TWC and CCC were measured by CO reduction during each isothermal. It was obvious that both aged TWC and aged CCC behaved a good redox property at 673 and 773 K. Based on XRD and BET measurement results, TWC and CCC washcoat were characterized with good thermal stability.
