Previous research on gene expression analysis and association tests have suggested that RELN is a risk gene for schizophrenia in world populations.Based on the reported down-regulation of RELN in schizophrenia patient...Previous research on gene expression analysis and association tests have suggested that RELN is a risk gene for schizophrenia in world populations.Based on the reported down-regulation of RELN in schizophrenia patients compared with normal subjects,we speculated that variants in the RELN promoter region may confer risk for schizophrenia.In this study,we investigated the associations of three SNPs in the promoter region of RELN with schizophrenia in a case-control sample from southwestern China（940 cases and 13 69 controls）.The results suggested that none of the SNPs showed significant associations in our sample,indicating the risk variants for schizophrenia in RELN may not be located in the promoter region.We also performed meta-analysis by combining our data with previously reported data on the Chinese population with a total sample size of 2 843 individuals,and the result remained nonsignificant.Collectively,our results suggested variants in the RELN promoter may not harbor risk SNPs associated with schizophrenia in the Chinese population.展开更多
It proves to be a tough job to define culture and to draw characteristics of culture or work out the categories of culture. Based on some influential definitions, and achievements made in sociology and anthropology, t...It proves to be a tough job to define culture and to draw characteristics of culture or work out the categories of culture. Based on some influential definitions, and achievements made in sociology and anthropology, this paper makes an attempt to summarize and discuss some characteristics of culture. With regard to the categorization of culture, we put forward the idea that it is closely related to the definition and features of culture, and also that it is closely related with human cognition and different perspectives, and thus culture category is an open system just as culture in general. Cultural development as product of human evolution and development is both a need and reality, going on through cultural transmission. In the process, it is human nature to encounter cultural conflicts like culture shock, the solution of which partially depends on cultural studies, on a close relationship with the main school of culture or dominating culture and on seeking similarities and accepting differences, and in a word, on friendly and cordial contacts and understanding through linguistic communication.展开更多
In this paper, operation characteristic of condensate polishing system is studied during startup, based on generator blowdown limit, given limit ion concentration in condensate during condenser leakage. Further give c...In this paper, operation characteristic of condensate polishing system is studied during startup, based on generator blowdown limit, given limit ion concentration in condensate during condenser leakage. Further give conclusion about condensate polishing system configuration and operation requirement： full flow condensate polishing system （CPS） is necessary to the units cooled by sea water, and it is better that one or two series put in service during normal operation other than all of them in hot standby. While continuous condensate tube leakage is 256 L/h, the units cooled by fresh water will be shutdown immediately, for this level leakage, whichever condensate polishing system capacity is 50% （30%） or 100%, action level 2 will be preformed, so 50% （30%） is enough for fresh water cooled units.展开更多
This paper describes an extremely fast polynomial time algorithm, the NOVCA （Near Optimal Vertex Cover Algorithm） that produces an optimal or near optimal vertex cover for any known undirected graph G （V, E）. NOVC...This paper describes an extremely fast polynomial time algorithm, the NOVCA （Near Optimal Vertex Cover Algorithm） that produces an optimal or near optimal vertex cover for any known undirected graph G （V, E）. NOVCA is based on the idea of（l） including the vertex having maximum degree in the vertex cover and （2） rendering the degree of a vertex to zero by including all its adjacent vertices. The three versions of algorithm, NOVCA-I, NOVCA-II, and NOVCA-random, have been developed. The results identifying bounds on the size of the minimum vertex cover as well as polynomial complexity of algorithm are given with experimental verification. Future research efforts will be directed at tuning the algorithm and providing proof for better approximation ratio with NOVCA compared to any available vertex cover algorithms.展开更多
We present a simple implementation of a thermal energy harvesting circuit with the maximum power point tracking（MPPT） control for self-powered miniature-sized sensor nodes. Complex start-up circuitry and direct curr...We present a simple implementation of a thermal energy harvesting circuit with the maximum power point tracking（MPPT） control for self-powered miniature-sized sensor nodes. Complex start-up circuitry and direct current to direct current（DC-DC） boost converters are not required, because the output voltage of targeted thermoelectric generator（TEG） devices is high enough to drive the load applications directly. The circuit operates in the active/asleep mode to overcome the power mismatch between TEG devices and load applications. The proposed circuit was implemented using a 0.35-μm complementary metal-oxide semiconductor（CMOS） process. Experimental results confirmed correct circuit operation and demonstrated the performance of the MPPT scheme. The circuit achieved a peak power efficiency of 95.5% and an MPPT accuracy of higher than 99%.展开更多
文摘Previous research on gene expression analysis and association tests have suggested that RELN is a risk gene for schizophrenia in world populations.Based on the reported down-regulation of RELN in schizophrenia patients compared with normal subjects,we speculated that variants in the RELN promoter region may confer risk for schizophrenia.In this study,we investigated the associations of three SNPs in the promoter region of RELN with schizophrenia in a case-control sample from southwestern China（940 cases and 13 69 controls）.The results suggested that none of the SNPs showed significant associations in our sample,indicating the risk variants for schizophrenia in RELN may not be located in the promoter region.We also performed meta-analysis by combining our data with previously reported data on the Chinese population with a total sample size of 2 843 individuals,and the result remained nonsignificant.Collectively,our results suggested variants in the RELN promoter may not harbor risk SNPs associated with schizophrenia in the Chinese population.
文摘It proves to be a tough job to define culture and to draw characteristics of culture or work out the categories of culture. Based on some influential definitions, and achievements made in sociology and anthropology, this paper makes an attempt to summarize and discuss some characteristics of culture. With regard to the categorization of culture, we put forward the idea that it is closely related to the definition and features of culture, and also that it is closely related with human cognition and different perspectives, and thus culture category is an open system just as culture in general. Cultural development as product of human evolution and development is both a need and reality, going on through cultural transmission. In the process, it is human nature to encounter cultural conflicts like culture shock, the solution of which partially depends on cultural studies, on a close relationship with the main school of culture or dominating culture and on seeking similarities and accepting differences, and in a word, on friendly and cordial contacts and understanding through linguistic communication.
文摘In this paper, operation characteristic of condensate polishing system is studied during startup, based on generator blowdown limit, given limit ion concentration in condensate during condenser leakage. Further give conclusion about condensate polishing system configuration and operation requirement： full flow condensate polishing system （CPS） is necessary to the units cooled by sea water, and it is better that one or two series put in service during normal operation other than all of them in hot standby. While continuous condensate tube leakage is 256 L/h, the units cooled by fresh water will be shutdown immediately, for this level leakage, whichever condensate polishing system capacity is 50% （30%） or 100%, action level 2 will be preformed, so 50% （30%） is enough for fresh water cooled units.
文摘This paper describes an extremely fast polynomial time algorithm, the NOVCA （Near Optimal Vertex Cover Algorithm） that produces an optimal or near optimal vertex cover for any known undirected graph G （V, E）. NOVCA is based on the idea of（l） including the vertex having maximum degree in the vertex cover and （2） rendering the degree of a vertex to zero by including all its adjacent vertices. The three versions of algorithm, NOVCA-I, NOVCA-II, and NOVCA-random, have been developed. The results identifying bounds on the size of the minimum vertex cover as well as polynomial complexity of algorithm are given with experimental verification. Future research efforts will be directed at tuning the algorithm and providing proof for better approximation ratio with NOVCA compared to any available vertex cover algorithms.
基金Project supported by the Incheon National University Research Grant in 2015 and partly supported by IDEC
文摘We present a simple implementation of a thermal energy harvesting circuit with the maximum power point tracking（MPPT） control for self-powered miniature-sized sensor nodes. Complex start-up circuitry and direct current to direct current（DC-DC） boost converters are not required, because the output voltage of targeted thermoelectric generator（TEG） devices is high enough to drive the load applications directly. The circuit operates in the active/asleep mode to overcome the power mismatch between TEG devices and load applications. The proposed circuit was implemented using a 0.35-μm complementary metal-oxide semiconductor（CMOS） process. Experimental results confirmed correct circuit operation and demonstrated the performance of the MPPT scheme. The circuit achieved a peak power efficiency of 95.5% and an MPPT accuracy of higher than 99%.
