we present a robust and universal quantum secret sharing protocol with four-qubit decoherence-free (DF) states against collective noise. The transmission's safety is ensured by the nonorthogonality of the noiseless...we present a robust and universal quantum secret sharing protocol with four-qubit decoherence-free (DF) states against collective noise. The transmission's safety is ensured by the nonorthogonality of the noiseless states traveling on the quantum channel. Although this scheme uses entangled states for encoding, only single-particle product measurements are required.展开更多
We present results from one of a set of studies run in the early 2000's, which looked at weak signals in terms of what consumers wanted. That study, on milk, revealed four distinct mind-sets, groups of respondents wh...We present results from one of a set of studies run in the early 2000's, which looked at weak signals in terms of what consumers wanted. That study, on milk, revealed four distinct mind-sets, groups of respondents who thought alike. These are: S1 Traditional + Health, S2 Traditional + Healthful Ingredients, $3 Traditional + Indulgent, S4 Listens to Authority, respectively. At that time the focus on foods as the source of health and wellness was just beginning. We show how to discover hitherto new, unexpected mind-sets of respondents, using experimental design of messaging, coupled with deconstruction of these messages by regression, and followed by clustering. We suggest that this approach to messaging consumers using experimental design provides a powerful method to uncover emerging mind-sets in the consumer population.展开更多
The paper examined the consumption pattern and attitude of households for local and imported rice in Ekiti State, Nigeria. The specific objectives of the paper are to: examine the household preference and consumption...The paper examined the consumption pattern and attitude of households for local and imported rice in Ekiti State, Nigeria. The specific objectives of the paper are to: examine the household preference and consumption level of local and imported rice, examine price variation between local and imported rice and identify the major problems confronting marketers of local and imported rice. Data were collected from 100 randomly chosen households with the aid of structured questionnaire. Data collected were analyzed with the use of descriptive statistics such as frequency, percentages, chi-square, t-test and regression analysis. The paper revealed among others that majority of the respondents prefer to consume local rice to imported rice because of its more palatability, health benefits, readily availability and relatively cheap price. The average price per kilogramme of local rice is 200 Naira compared to that of imported rice which is 300 Naira. The difference in price is as a result of exchange rate and costs associated with smuggling of imported rice across the border of Nigeria from neighbouring countries. Nonetheless, the quality of local rice is still very low when compared to imported rice in terms of degree of impurities such as stone and shafts and the level of polishing.展开更多
INTERNATIONAL travel is becoming fashionable in China and more people are beginning to explore the outside world.Many countries are trying to attract Chinese tourists.Many foreigners,however,have a somewhat love-hate ...INTERNATIONAL travel is becoming fashionable in China and more people are beginning to explore the outside world.Many countries are trying to attract Chinese tourists.Many foreigners,however,have a somewhat love-hate relationship with Chinese visitors.They love Chinese tourists’high level of consumption,and the economic benefits it brings.展开更多
There is a need for cost-efficient methods in consumer research. Existing qualitative methods are expensive to conduct. This paper aims to improve the focus group method. The objective was to improve focus groups with...There is a need for cost-efficient methods in consumer research. Existing qualitative methods are expensive to conduct. This paper aims to improve the focus group method. The objective was to improve focus groups with different aims: shorter time conducting interviews, interview greater number of respondents, deliver results faster than traditionally analysis of data, and lower total cost. CurroCus groups of 15-45 minutes duration were tested in five different experiments, including 70 to 160 respondents in groups of 7-11 respondents. The name of the new method is formed from the word "Curro" in Latin that means speed in English, and "Cus" that is the last syllable of the word "focus", thereby forming a new word: CurroCus~ on the method. The results from testing of the CurroCus~ group method at different cases showed that trained moderators and observers could collect relevant responses in a given time for each group. It was possible to process a number of 6 to 10 respondents for each group. By conducting several successive groups, saturation of information was reached after an adequate number of CurroCus~ groups. Therefore, the total number of respondents can be optimized and results can be more precise, with reduced risk of inaccuracy. At the same time, the cost for each case can be lowered substantially, in our cases to approximately 1/10 of a traditional focus group cost. The role (skills) of the moderator is important. A disadvantage is the risk that some of the respondents are not able to express their thoughts in due time when time is limited. There is a need for more research on all parts of the CurroCus group process.展开更多
In this study, we aim to understand the characteristics of online group-buying consumers and to investigate salient factors which influence the continuance intention of online group-buying platforms (OGBP) to bridge...In this study, we aim to understand the characteristics of online group-buying consumers and to investigate salient factors which influence the continuance intention of online group-buying platforms (OGBP) to bridge this knowledge gap. An expectation-confirmation model of information systems (IS) continuance is adapted to construct a research model in online group-buying contexts. A total of 289 complete and valid responses were collected. Our findings contribute to academics and practitioners in two ways: Firstly, our respondents show that they are young (93% of the respondents' ages range between 19 and 28 years old), female (88% of the respondents), and thrifty (82% of the respondents' transaction amounts are below US$16). Secondly, based on our results, price performance expectations have a direct impact on confirmation. In addition, in contrast to the IS continuance model (Bhattacherjee, 2001), the effect of perceived usefulness on satisfaction is not supported. Thus, in online group-buying settings, confirmation is the key antecedent of satisfaction. Satisfaction and perceived usefulness are significantly associated with OGBP continuance intention. Consequently, in addition to offering a wide assortment of merchandise and a convenient online shopping experience to enhance customers' perceived usefulness of OGBP, OGBP managers should aim low-price marketing strategies at this female, young, thrifty and price-sensitive segment to transcend consumers' price expectations and attract consumers' continued intention to visit OGBP.展开更多
This study was carried out to identify wild plants which are widely consumed as vegetables by local communities in Sanhurfa and neighboring provinces. The data were collected in different ways such as face to face int...This study was carried out to identify wild plants which are widely consumed as vegetables by local communities in Sanhurfa and neighboring provinces. The data were collected in different ways such as face to face interview with who collect these plants for directly consuming and marketing, and used for different purposes. As results of study, evaluation was done through data which were collected on characteristics of some plants usage fields, local and scientific names, and economic importance. Some species were determined (Gundelia tournefortii L., Ornithogalum narbonense L., Mentha pulegium L., Malva neglecta L., Nasturtium officinale R. Br., Anchusa azurea Miller., Arum dioscoridis Sm., Ferula orientalis L., Eryngium billardieri Delar., Capsella bursa-pastoris (L.) Medik. and Apiurn nodiflorum (L.) Lag. etc.) which are naturally grown and more intense in Sanhurfa.展开更多
This paper focuses on Malaysian Muslims perspective towards food safety, environment and animal welfare aspects of Halal principles in manufactured foods. Cross-sectional consumer data were collected through a survey....This paper focuses on Malaysian Muslims perspective towards food safety, environment and animal welfare aspects of Halal principles in manufactured foods. Cross-sectional consumer data were collected through a survey. One thousand seven hundreds and sixteen (1,716) Muslim respondents all over Peninsular Malaysia were interviewed randomly via structured questionnaire in 2009 to address the issues on Muslim consumers' understanding and perspective of Halal principles and its relation to food safety, environmentally friendly and animal welfare. Descriptive and Chi-square analysis were used to analyze the data collected. The findings revealed that majority of respondent relate Halal principles to food safety because Halal principle not only about slaughtering of animals but must also be Tyoibah or clean. The consumers from East of Peninsular Malaysia, with higher level religiosity and education level are more likely to understand the true meaning of Halal principles, Measuring the extent of consumers' understanding of Halal principles is vital, since Halal does not only focus on the Islamic processing but also sustainable concept of hygiene, sanitation and safety.展开更多
Steady thermo-solutocapillary convection in a rectangular cavity with deformable free surface under microgravity condition is numerically studied, where level set method is employed to capture the free surface deforma...Steady thermo-solutocapillary convection in a rectangular cavity with deformable free surface under microgravity condition is numerically studied, where level set method is employed to capture the free surface deformation. Both the temperature and solute concentration gradients are applied horizontally. The computational results show that, as the thermal to solutal Marangoni number ratio varies between-10 and-1(namely,-10 ≤ R_σ <-1), the flow field exists one anti-clockwise rotating convective cell driven by thermocapillary convection, and the free surface bulges out near the left end wall and bulges in near the right end wall. As-1 < R_σ < 0, the flow field exists one clockwise rotating convective cell driven by solutocapillary convection, and the free surface bulges out near the right end wall and bulges in near the left end wall. As R_σ =-1, the flow field consists of one clockwise and one anti-clockwise rotating convective cells, and the free surface bulges in at the central point and bulges out near the left and right end walls.展开更多
Rice is a major source of inorganic arsenic(As) exposure for billions of people worldwide. Therefore, strategies to reduce As accumulation in rice should be adopted. Silicon(Si) application can effectively mitigate As...Rice is a major source of inorganic arsenic(As) exposure for billions of people worldwide. Therefore, strategies to reduce As accumulation in rice should be adopted. Silicon(Si) application can effectively mitigate As accumulation in rice. In this study, a pot experiment was performed to investigate the effect of Si on As speciation and distribution in different rice tissues. The results showed that Si addition significantly increased As and Si concentrations in soil solution and Si concentration in iron plaque formed around rice root surface, whereas As in the iron plaque was significantly decreased. Total As concentrations in the stem, leaf, husk, and brown rice were remarkably decreased by 51.9%, 31.9%, 33.8%, and 24.1%, respectively, after Si addition, and inorganic As concentrations were reduced by 52.3%, 35.5%, 50.1%, and 20.1%, respectively. Moreover, both dimethylarsinic acid concentration and percentage in rice grain were significantly elevated by Si application. Therefore, Si application is promising as a way to mitigate inorganic As accumulation in rice and to reduce consumer health risk.展开更多
We combine the Fermi and Moran update rules in the spatial prisoner's dilemma and snowdrift games to investigate the behavior of collective cooperation among agents on the regular lattice. Large-scale simulations ind...We combine the Fermi and Moran update rules in the spatial prisoner's dilemma and snowdrift games to investigate the behavior of collective cooperation among agents on the regular lattice. Large-scale simulations indicate that, compared to the model with only one update rule, the the role of update dynamics should be paid more attention in cooperation behavior exhibits the richer phenomena, and the evolutionary game theory. Meanwhile, we also observe that the introduction of Moran rule, which needs to consider all neighbor's information, can markedly promote the aggregate cooperation level, that is, randomly selecting the neighbor proportional to its payoff to imitate will facilitate the cooperation among agents. Current results will contribute to further understand the cooperation dynamics and evolutionary behaviors within many biological, economic and social systems.展开更多
The boost type power supplies are widely used in portable consumer electronics to step up the input voltage to adapt for the high voltage applications like light-emitting diode(LED) driving and liquid crystal display(...The boost type power supplies are widely used in portable consumer electronics to step up the input voltage to adapt for the high voltage applications like light-emitting diode(LED) driving and liquid crystal display(LCD) biasing.In these applications,a regulator with small volume,fewer external components and high efficiency is highly desired.This paper proposes a projected off-and on-time boost control scheme,based on which a monolithic IC with an on-chip VDMOS with 0.2 Ω on-state resistance RDS-ON was implemented in 1.5 μm bipolar-CMOS-DMOS(BCD) process.A 12 V,0.3 A boost regulator prototype is presented as well.With projected off-time and modulated on-time in continuous conduction mode(CCM),a quasi fixed frequency,which is preferred for ripple control,is realized.With projected on-time and modulated off-time in discontinuous conduction mode(DCM),pulse frequency modulation(PFM) operation,which is beneficial to light load efficiency improvement,is achieved without extra control circuitry.Measurement results show that an efficiency of 3% higher than that of a conventional method under 0.5 W output is achieved while a step load transient response comparable to that of current mode control is maintained as well.展开更多
基金Supported by the National High-Tech Research,Development Plan of China under Grant Nos.2009AA01Z441National Basic Research Program of China(973 Program 2007CB311100)+3 种基金the National Natural Science Foundation of China under Grant Nos.60873191, 60821001,61003290The Specialized Research Fund for the Doctoral Program of Higher Education under Grant No.20091103120014Beijing Natural Science Foundation under Grant Nos.1093015 and 1102004the ISN open Foundation
文摘we present a robust and universal quantum secret sharing protocol with four-qubit decoherence-free (DF) states against collective noise. The transmission's safety is ensured by the nonorthogonality of the noiseless states traveling on the quantum channel. Although this scheme uses entangled states for encoding, only single-particle product measurements are required.
文摘We present results from one of a set of studies run in the early 2000's, which looked at weak signals in terms of what consumers wanted. That study, on milk, revealed four distinct mind-sets, groups of respondents who thought alike. These are: S1 Traditional + Health, S2 Traditional + Healthful Ingredients, $3 Traditional + Indulgent, S4 Listens to Authority, respectively. At that time the focus on foods as the source of health and wellness was just beginning. We show how to discover hitherto new, unexpected mind-sets of respondents, using experimental design of messaging, coupled with deconstruction of these messages by regression, and followed by clustering. We suggest that this approach to messaging consumers using experimental design provides a powerful method to uncover emerging mind-sets in the consumer population.
文摘The paper examined the consumption pattern and attitude of households for local and imported rice in Ekiti State, Nigeria. The specific objectives of the paper are to: examine the household preference and consumption level of local and imported rice, examine price variation between local and imported rice and identify the major problems confronting marketers of local and imported rice. Data were collected from 100 randomly chosen households with the aid of structured questionnaire. Data collected were analyzed with the use of descriptive statistics such as frequency, percentages, chi-square, t-test and regression analysis. The paper revealed among others that majority of the respondents prefer to consume local rice to imported rice because of its more palatability, health benefits, readily availability and relatively cheap price. The average price per kilogramme of local rice is 200 Naira compared to that of imported rice which is 300 Naira. The difference in price is as a result of exchange rate and costs associated with smuggling of imported rice across the border of Nigeria from neighbouring countries. Nonetheless, the quality of local rice is still very low when compared to imported rice in terms of degree of impurities such as stone and shafts and the level of polishing.
文摘INTERNATIONAL travel is becoming fashionable in China and more people are beginning to explore the outside world.Many countries are trying to attract Chinese tourists.Many foreigners,however,have a somewhat love-hate relationship with Chinese visitors.They love Chinese tourists’high level of consumption,and the economic benefits it brings.
文摘There is a need for cost-efficient methods in consumer research. Existing qualitative methods are expensive to conduct. This paper aims to improve the focus group method. The objective was to improve focus groups with different aims: shorter time conducting interviews, interview greater number of respondents, deliver results faster than traditionally analysis of data, and lower total cost. CurroCus groups of 15-45 minutes duration were tested in five different experiments, including 70 to 160 respondents in groups of 7-11 respondents. The name of the new method is formed from the word "Curro" in Latin that means speed in English, and "Cus" that is the last syllable of the word "focus", thereby forming a new word: CurroCus~ on the method. The results from testing of the CurroCus~ group method at different cases showed that trained moderators and observers could collect relevant responses in a given time for each group. It was possible to process a number of 6 to 10 respondents for each group. By conducting several successive groups, saturation of information was reached after an adequate number of CurroCus~ groups. Therefore, the total number of respondents can be optimized and results can be more precise, with reduced risk of inaccuracy. At the same time, the cost for each case can be lowered substantially, in our cases to approximately 1/10 of a traditional focus group cost. The role (skills) of the moderator is important. A disadvantage is the risk that some of the respondents are not able to express their thoughts in due time when time is limited. There is a need for more research on all parts of the CurroCus group process.
文摘In this study, we aim to understand the characteristics of online group-buying consumers and to investigate salient factors which influence the continuance intention of online group-buying platforms (OGBP) to bridge this knowledge gap. An expectation-confirmation model of information systems (IS) continuance is adapted to construct a research model in online group-buying contexts. A total of 289 complete and valid responses were collected. Our findings contribute to academics and practitioners in two ways: Firstly, our respondents show that they are young (93% of the respondents' ages range between 19 and 28 years old), female (88% of the respondents), and thrifty (82% of the respondents' transaction amounts are below US$16). Secondly, based on our results, price performance expectations have a direct impact on confirmation. In addition, in contrast to the IS continuance model (Bhattacherjee, 2001), the effect of perceived usefulness on satisfaction is not supported. Thus, in online group-buying settings, confirmation is the key antecedent of satisfaction. Satisfaction and perceived usefulness are significantly associated with OGBP continuance intention. Consequently, in addition to offering a wide assortment of merchandise and a convenient online shopping experience to enhance customers' perceived usefulness of OGBP, OGBP managers should aim low-price marketing strategies at this female, young, thrifty and price-sensitive segment to transcend consumers' price expectations and attract consumers' continued intention to visit OGBP.
文摘This study was carried out to identify wild plants which are widely consumed as vegetables by local communities in Sanhurfa and neighboring provinces. The data were collected in different ways such as face to face interview with who collect these plants for directly consuming and marketing, and used for different purposes. As results of study, evaluation was done through data which were collected on characteristics of some plants usage fields, local and scientific names, and economic importance. Some species were determined (Gundelia tournefortii L., Ornithogalum narbonense L., Mentha pulegium L., Malva neglecta L., Nasturtium officinale R. Br., Anchusa azurea Miller., Arum dioscoridis Sm., Ferula orientalis L., Eryngium billardieri Delar., Capsella bursa-pastoris (L.) Medik. and Apiurn nodiflorum (L.) Lag. etc.) which are naturally grown and more intense in Sanhurfa.
文摘This paper focuses on Malaysian Muslims perspective towards food safety, environment and animal welfare aspects of Halal principles in manufactured foods. Cross-sectional consumer data were collected through a survey. One thousand seven hundreds and sixteen (1,716) Muslim respondents all over Peninsular Malaysia were interviewed randomly via structured questionnaire in 2009 to address the issues on Muslim consumers' understanding and perspective of Halal principles and its relation to food safety, environmentally friendly and animal welfare. Descriptive and Chi-square analysis were used to analyze the data collected. The findings revealed that majority of respondent relate Halal principles to food safety because Halal principle not only about slaughtering of animals but must also be Tyoibah or clean. The consumers from East of Peninsular Malaysia, with higher level religiosity and education level are more likely to understand the true meaning of Halal principles, Measuring the extent of consumers' understanding of Halal principles is vital, since Halal does not only focus on the Islamic processing but also sustainable concept of hygiene, sanitation and safety.
基金supported by National Natural Science Foundation of China(Grant No.51206165)National Key R & D Program of China(Grant Number 2016YFB0601100)
文摘Steady thermo-solutocapillary convection in a rectangular cavity with deformable free surface under microgravity condition is numerically studied, where level set method is employed to capture the free surface deformation. Both the temperature and solute concentration gradients are applied horizontally. The computational results show that, as the thermal to solutal Marangoni number ratio varies between-10 and-1(namely,-10 ≤ R_σ <-1), the flow field exists one anti-clockwise rotating convective cell driven by thermocapillary convection, and the free surface bulges out near the left end wall and bulges in near the right end wall. As-1 < R_σ < 0, the flow field exists one clockwise rotating convective cell driven by solutocapillary convection, and the free surface bulges out near the right end wall and bulges in near the left end wall. As R_σ =-1, the flow field consists of one clockwise and one anti-clockwise rotating convective cells, and the free surface bulges in at the central point and bulges out near the left and right end walls.
基金supported by the National Natural Science Foundation of China (Nos. 41501519 and 41571130063)the International Science and Technology Cooperation Project of the Ministry of Science and Technology, China (No. 2011DFB91710)+1 种基金the Foundation of Macao University, China (No. MYRG204(Y1L4)-FST11-SHJ)the Fujian Provincial Natural Science Foundation of China (No. 2014J01138)
文摘Rice is a major source of inorganic arsenic(As) exposure for billions of people worldwide. Therefore, strategies to reduce As accumulation in rice should be adopted. Silicon(Si) application can effectively mitigate As accumulation in rice. In this study, a pot experiment was performed to investigate the effect of Si on As speciation and distribution in different rice tissues. The results showed that Si addition significantly increased As and Si concentrations in soil solution and Si concentration in iron plaque formed around rice root surface, whereas As in the iron plaque was significantly decreased. Total As concentrations in the stem, leaf, husk, and brown rice were remarkably decreased by 51.9%, 31.9%, 33.8%, and 24.1%, respectively, after Si addition, and inorganic As concentrations were reduced by 52.3%, 35.5%, 50.1%, and 20.1%, respectively. Moreover, both dimethylarsinic acid concentration and percentage in rice grain were significantly elevated by Si application. Therefore, Si application is promising as a way to mitigate inorganic As accumulation in rice and to reduce consumer health risk.
基金Supported by the National Natural Science Foundation of China under Grant No.60904063Tianjin Municipal Natural Science Foundation under Grant No.11JCYBJC06600+1 种基金the Development Fund of Science and Technology for the Higher Education in Tianjin under Grant No.20090813the 7th Overseas Training Project for the Young and Middle Teachers in Tianjin Municipal Universities
文摘We combine the Fermi and Moran update rules in the spatial prisoner's dilemma and snowdrift games to investigate the behavior of collective cooperation among agents on the regular lattice. Large-scale simulations indicate that, compared to the model with only one update rule, the the role of update dynamics should be paid more attention in cooperation behavior exhibits the richer phenomena, and the evolutionary game theory. Meanwhile, we also observe that the introduction of Moran rule, which needs to consider all neighbor's information, can markedly promote the aggregate cooperation level, that is, randomly selecting the neighbor proportional to its payoff to imitate will facilitate the cooperation among agents. Current results will contribute to further understand the cooperation dynamics and evolutionary behaviors within many biological, economic and social systems.
基金Project (No.90707002) supported by the National Natural Science Foundation of China
文摘The boost type power supplies are widely used in portable consumer electronics to step up the input voltage to adapt for the high voltage applications like light-emitting diode(LED) driving and liquid crystal display(LCD) biasing.In these applications,a regulator with small volume,fewer external components and high efficiency is highly desired.This paper proposes a projected off-and on-time boost control scheme,based on which a monolithic IC with an on-chip VDMOS with 0.2 Ω on-state resistance RDS-ON was implemented in 1.5 μm bipolar-CMOS-DMOS(BCD) process.A 12 V,0.3 A boost regulator prototype is presented as well.With projected off-time and modulated on-time in continuous conduction mode(CCM),a quasi fixed frequency,which is preferred for ripple control,is realized.With projected on-time and modulated off-time in discontinuous conduction mode(DCM),pulse frequency modulation(PFM) operation,which is beneficial to light load efficiency improvement,is achieved without extra control circuitry.Measurement results show that an efficiency of 3% higher than that of a conventional method under 0.5 W output is achieved while a step load transient response comparable to that of current mode control is maintained as well.