An optimal dispatch strategy for the economic operation of hybrid renewable energy system with storage is presented in this paper. Solar photovoltaic (PV), Wind and Battery Storage are the prime components of interest...An optimal dispatch strategy for the economic operation of hybrid renewable energy system with storage is presented in this paper. Solar photovoltaic (PV), Wind and Battery Storage are the prime components of interest constituting the hybrid system. In addition to the economic aspect of the systems, the formulation focuses on renewable prioritized operation, system reliability and environmental sustainability enhancement. Being a multi-objective (MO) problem, a modified non-dominated sorting particle swarm optimization is used for solving the problem, considering operational cost, pollutant emission, and expected energy not served as operational objectives. The non-dominated sorting particle swarm optimization (NSPSO) is augmented with crowding distance technique, stochastic weight trade-off and chaotic mutation approaches, to control the exploration of global and particle bests, alleviating premature convergence, and enhancing solution search capability. A two-stage approach is used to derive the best solution. A modified IEEE 30-bus test system is used to demonstrate the results. By using the proposed approach, a lower and wider Pareto front is obtained, in comparison with prominent optimization approaches.展开更多
This paper analyzes the reliability of low voltage(LV)distribution system of the Sri Lankan power system.Performance of LV distribution systems where mainly domestic consumers depend on the individual components of th...This paper analyzes the reliability of low voltage(LV)distribution system of the Sri Lankan power system.Performance of LV distribution systems where mainly domestic consumers depend on the individual components of the system.Failure rates of elements of the system are calculated based on the historical data of the LV distribution system in a semi-urban area.Load point reliability indices are calculated using the analytical method.Consumer-oriented reliability parameters and energy not served,and its cost are determined.As a method of improvement of reliability,inclusion of fuses to the lateral feeders of the main feeder is proposed.Load point reliability indices,consumer-oriented reliability indices,and energy not served are calculated for the distribution system with fuses in lateral feeders.The results are compared with the reliability indices of the present system and analyzed.展开更多
With regard to sequencing problems of optimum service for Model P-J, the author has already introduced a method of optimal sequencing. This paper will develop a further generalization. For the sake of convenience, thi...With regard to sequencing problems of optimum service for Model P-J, the author has already introduced a method of optimal sequencing. This paper will develop a further generalization. For the sake of convenience, this paper will adopt the same symbols as those in (1, 2)Suppose that there are K-service groups.展开更多
Objective To explore the effects of polysomy 17 on human epidermal growth factor receptor-2(HER-2) testing and study its clinicopathologic significance. Methods We retrospectively analyzed the HER-2 status by fluoresc...Objective To explore the effects of polysomy 17 on human epidermal growth factor receptor-2(HER-2) testing and study its clinicopathologic significance. Methods We retrospectively analyzed the HER-2 status by fluorescence in situ hybridization(FISH) and HER-2展开更多
The Fork-Join program consisting of K parallel tasks is a useful model for a large number of computing applications. When the parallel processor has multi-channels, later tasks may finish execution earlier than their ...The Fork-Join program consisting of K parallel tasks is a useful model for a large number of computing applications. When the parallel processor has multi-channels, later tasks may finish execution earlier than their earlier tasks and may join with tasks from other programs. This phenomenon is called exchangeable join (EJ), which introduces correlation to the task’s service time. In this work, we investigate the response time of multiprocessor systems with EJ with a new approach. We analyze two aspects of this kind of systems: exchangeable join (EJ) and the capacity constraint (CC). We prove that the system response time can be effectively reduced by EJ, while the reduced amount is constrained by the capacity of the multiprocessor. An upper bound model is constructed based on this analysis and a quick estimation algorithm is proposed. The approximation formula is verified by extensive simulation results, which show that the relative error of approximation is less than 5%.展开更多
2010229 Expression and significance of phosphtidylinositol 3-kinase/protein kinase B signal transduction pathway in severe acute pancrceatitis-associated lung injury. KANG Xin(康新),et al. Dept Emerg Med,Zhongshan Hos...2010229 Expression and significance of phosphtidylinositol 3-kinase/protein kinase B signal transduction pathway in severe acute pancrceatitis-associated lung injury. KANG Xin(康新),et al. Dept Emerg Med,Zhongshan Hosp,Dalian Univ, Dalian 116001.Natl Med J China 2010;90(11):732-777.展开更多
In 1979 Verkleij et al. first reported the occurrence of lipidic particles on liposomcs. These lipidic particles may be associated with the nonbilayer lipid structure in biological membranes. In recent years, it has b...In 1979 Verkleij et al. first reported the occurrence of lipidic particles on liposomcs. These lipidic particles may be associated with the nonbilayer lipid structure in biological membranes. In recent years, it has been proved by quite a few experiments that above the transition temperature, lipidic particles can be observed by using freeze-frac-ture electron microscopy when liposomes are prepared by PE either synthesized or展开更多
Facing common security threats, leaders of six countries-Russia, China, Kazakhstan, Kyrgyzstan, Tajikistan and Uzbekistan-established the Shanghai Cooperation Organization in June 2001 to maintain regional stability a...Facing common security threats, leaders of six countries-Russia, China, Kazakhstan, Kyrgyzstan, Tajikistan and Uzbekistan-established the Shanghai Cooperation Organization in June 2001 to maintain regional stability and security, fight terrorism and extremism, prevent conflicts and enhance economic cooperation. The SCO's primary goals are economic cooperation and fighting terrorism.展开更多
LU You ws a native of Shan-yin in Yuezhou(now inShaoxing,Zhejian Prov-ince).Born at the time of destruc-tion of the Northern Song Dynasty,he was a successfUl candidate in thehighest imperial examinations andonce serve...LU You ws a native of Shan-yin in Yuezhou(now inShaoxing,Zhejian Prov-ince).Born at the time of destruc-tion of the Northern Song Dynasty,he was a successfUl candidate in thehighest imperial examinations andonce served as a local official inZhenjiang and Longxing.Becausehe was nurtured in the spirit ofpatriotism when he was young。展开更多
Objective To investigate the expression of IL-23/IL-17 axis in peripheral blood of patients with primary immune thrombocytopenia(ITP)and its clinical significance.Methods The real-time quantitative reverse transcripti...Objective To investigate the expression of IL-23/IL-17 axis in peripheral blood of patients with primary immune thrombocytopenia(ITP)and its clinical significance.Methods The real-time quantitative reverse transcription-polymerase chain reaction(RT-PCR)was used to determine the expression of IL-23p19,p40,p35,IL-23R,IL-12Rβ1,IL-12Rβ2,IL-17A,IL-17F m RNA in展开更多
The effect of gossypol on kidney has aroused much interest among investigators. It has been proposed that prostaglandins (PGs) might play an important role in the antifertilitic effect of gossypol and PGs might be rel...The effect of gossypol on kidney has aroused much interest among investigators. It has been proposed that prostaglandins (PGs) might play an important role in the antifertilitic effect of gossypol and PGs might be related directly or indirectly to展开更多
The active region AR5629 had looked quiet since it appeared from east limb onAug. 4th, there were some faculae aronud sunspot, two long filaments connected with thesunspot. On 9th, the filaments in active region becam...The active region AR5629 had looked quiet since it appeared from east limb onAug. 4th, there were some faculae aronud sunspot, two long filaments connected with thesunspot. On 9th, the filaments in active region became short and arched, We observedtwo class S flares, one of them (1005 UT) was SF / C3. 2 class. On 10th, we took展开更多
SUCCULENT SHAOMAI This former side dish won’t be sidelined烧麦:薄面作皮,碎肉为馅,顶似花蕊,卖相与味道俱佳的中式点心Shaomai(烧麦),also known as siu mai in Cantonese,is a type of dumpling.It is also considered to be a t...SUCCULENT SHAOMAI This former side dish won’t be sidelined烧麦:薄面作皮,碎肉为馅,顶似花蕊,卖相与味道俱佳的中式点心Shaomai(烧麦),also known as siu mai in Cantonese,is a type of dumpling.It is also considered to be a type of dim sum as,contrary to some Western interpretations,dim sum is not a type of meal but rather a reference to many different foods served in small dishes.Though the most popular version outside of China is the展开更多
Objective To explore the role of caveolin-1 in nonalcoholic fatty liver disease (NAFLD) caused by high-fat diet.Methods A total of 12 ten-week-old male C57BL/6mice were fed with high-fat and high-cholesterol diet for1...Objective To explore the role of caveolin-1 in nonalcoholic fatty liver disease (NAFLD) caused by high-fat diet.Methods A total of 12 ten-week-old male C57BL/6mice were fed with high-fat and high-cholesterol diet for14 weeks to establish the NAFLD animal model.And six syngeneic mice fed with normal diet at the same time were taken as control.All the mice were sacrificed展开更多
据统计,考生在解答MET中的某些时态题时,失误率较高。下面就此类问题予以分类简析。 1.一般现在时与现在进行时间的相互干扰: In some parts of the world, tea____with milk and sugar. (MET 93-30) A. is serving B. is served C. ser...据统计,考生在解答MET中的某些时态题时,失误率较高。下面就此类问题予以分类简析。 1.一般现在时与现在进行时间的相互干扰: In some parts of the world, tea____with milk and sugar. (MET 93-30) A. is serving B. is served C. serves D.展开更多
文摘An optimal dispatch strategy for the economic operation of hybrid renewable energy system with storage is presented in this paper. Solar photovoltaic (PV), Wind and Battery Storage are the prime components of interest constituting the hybrid system. In addition to the economic aspect of the systems, the formulation focuses on renewable prioritized operation, system reliability and environmental sustainability enhancement. Being a multi-objective (MO) problem, a modified non-dominated sorting particle swarm optimization is used for solving the problem, considering operational cost, pollutant emission, and expected energy not served as operational objectives. The non-dominated sorting particle swarm optimization (NSPSO) is augmented with crowding distance technique, stochastic weight trade-off and chaotic mutation approaches, to control the exploration of global and particle bests, alleviating premature convergence, and enhancing solution search capability. A two-stage approach is used to derive the best solution. A modified IEEE 30-bus test system is used to demonstrate the results. By using the proposed approach, a lower and wider Pareto front is obtained, in comparison with prominent optimization approaches.
文摘This paper analyzes the reliability of low voltage(LV)distribution system of the Sri Lankan power system.Performance of LV distribution systems where mainly domestic consumers depend on the individual components of the system.Failure rates of elements of the system are calculated based on the historical data of the LV distribution system in a semi-urban area.Load point reliability indices are calculated using the analytical method.Consumer-oriented reliability parameters and energy not served,and its cost are determined.As a method of improvement of reliability,inclusion of fuses to the lateral feeders of the main feeder is proposed.Load point reliability indices,consumer-oriented reliability indices,and energy not served are calculated for the distribution system with fuses in lateral feeders.The results are compared with the reliability indices of the present system and analyzed.
文摘With regard to sequencing problems of optimum service for Model P-J, the author has already introduced a method of optimal sequencing. This paper will develop a further generalization. For the sake of convenience, this paper will adopt the same symbols as those in (1, 2)Suppose that there are K-service groups.
文摘Objective To explore the effects of polysomy 17 on human epidermal growth factor receptor-2(HER-2) testing and study its clinicopathologic significance. Methods We retrospectively analyzed the HER-2 status by fluorescence in situ hybridization(FISH) and HER-2
基金Project supported by the National Natural Science Foundation of0 China (Nos. 60274011 and 60574067), and the Program for NewCentury Excellent Talents in University (No. NCET-04-0094), China
文摘The Fork-Join program consisting of K parallel tasks is a useful model for a large number of computing applications. When the parallel processor has multi-channels, later tasks may finish execution earlier than their earlier tasks and may join with tasks from other programs. This phenomenon is called exchangeable join (EJ), which introduces correlation to the task’s service time. In this work, we investigate the response time of multiprocessor systems with EJ with a new approach. We analyze two aspects of this kind of systems: exchangeable join (EJ) and the capacity constraint (CC). We prove that the system response time can be effectively reduced by EJ, while the reduced amount is constrained by the capacity of the multiprocessor. An upper bound model is constructed based on this analysis and a quick estimation algorithm is proposed. The approximation formula is verified by extensive simulation results, which show that the relative error of approximation is less than 5%.
文摘2010229 Expression and significance of phosphtidylinositol 3-kinase/protein kinase B signal transduction pathway in severe acute pancrceatitis-associated lung injury. KANG Xin(康新),et al. Dept Emerg Med,Zhongshan Hosp,Dalian Univ, Dalian 116001.Natl Med J China 2010;90(11):732-777.
文摘In 1979 Verkleij et al. first reported the occurrence of lipidic particles on liposomcs. These lipidic particles may be associated with the nonbilayer lipid structure in biological membranes. In recent years, it has been proved by quite a few experiments that above the transition temperature, lipidic particles can be observed by using freeze-frac-ture electron microscopy when liposomes are prepared by PE either synthesized or
文摘Facing common security threats, leaders of six countries-Russia, China, Kazakhstan, Kyrgyzstan, Tajikistan and Uzbekistan-established the Shanghai Cooperation Organization in June 2001 to maintain regional stability and security, fight terrorism and extremism, prevent conflicts and enhance economic cooperation. The SCO's primary goals are economic cooperation and fighting terrorism.
文摘LU You ws a native of Shan-yin in Yuezhou(now inShaoxing,Zhejian Prov-ince).Born at the time of destruc-tion of the Northern Song Dynasty,he was a successfUl candidate in thehighest imperial examinations andonce served as a local official inZhenjiang and Longxing.Becausehe was nurtured in the spirit ofpatriotism when he was young。
文摘Objective To investigate the expression of IL-23/IL-17 axis in peripheral blood of patients with primary immune thrombocytopenia(ITP)and its clinical significance.Methods The real-time quantitative reverse transcription-polymerase chain reaction(RT-PCR)was used to determine the expression of IL-23p19,p40,p35,IL-23R,IL-12Rβ1,IL-12Rβ2,IL-17A,IL-17F m RNA in
文摘The effect of gossypol on kidney has aroused much interest among investigators. It has been proposed that prostaglandins (PGs) might play an important role in the antifertilitic effect of gossypol and PGs might be related directly or indirectly to
文摘The active region AR5629 had looked quiet since it appeared from east limb onAug. 4th, there were some faculae aronud sunspot, two long filaments connected with thesunspot. On 9th, the filaments in active region became short and arched, We observedtwo class S flares, one of them (1005 UT) was SF / C3. 2 class. On 10th, we took
文摘SUCCULENT SHAOMAI This former side dish won’t be sidelined烧麦:薄面作皮,碎肉为馅,顶似花蕊,卖相与味道俱佳的中式点心Shaomai(烧麦),also known as siu mai in Cantonese,is a type of dumpling.It is also considered to be a type of dim sum as,contrary to some Western interpretations,dim sum is not a type of meal but rather a reference to many different foods served in small dishes.Though the most popular version outside of China is the
文摘Objective To explore the role of caveolin-1 in nonalcoholic fatty liver disease (NAFLD) caused by high-fat diet.Methods A total of 12 ten-week-old male C57BL/6mice were fed with high-fat and high-cholesterol diet for14 weeks to establish the NAFLD animal model.And six syngeneic mice fed with normal diet at the same time were taken as control.All the mice were sacrificed
文摘据统计,考生在解答MET中的某些时态题时,失误率较高。下面就此类问题予以分类简析。 1.一般现在时与现在进行时间的相互干扰: In some parts of the world, tea____with milk and sugar. (MET 93-30) A. is serving B. is served C. serves D.
