CsPbI_(2)Br perovskite solar cell has been extensively studied due to its exceptional thermal stability and relatively stable perovskite phase structure.However,the presence of bromine leads to a rapid crystallization...CsPbI_(2)Br perovskite solar cell has been extensively studied due to its exceptional thermal stability and relatively stable perovskite phase structure.However,the presence of bromine leads to a rapid crystallization rate of CsPbI_(2)Br films,resulting in small grain size and high defect density.Additionally,CsPbI_(2)Br demonstrates poor light absorption due to its wide bandgap.Therefore,it is crucial to control the crystallization rate and increase the film thickness to reduce defect density,enhance light absorption,and improve photovoltaic performance.In this study,we utilized a PbAc_(2)-incorporated twice spincoating(PTS) process to address these issues.Initially,PbAc_(2) was added to the CsPbI_(2)Br precursor solution to form a CsPbI_(2)Br film,which was then coated with the CsPbI_(2)Br precursor solution to produce the PTS film,Ac^(-)can delay the perovskite crystallization,leading to the formation of thicker and denser CsPbI_(2)Br films.Moreover,lone-pair electrons of the oxygen atom provided by Ac^(-)formed coordination bonds with under-coordinated Pb~(2+) ions to fill halogen ion vacancies,thereby reducing the defect density.Ultimately,the PTS CsPbI_(2)Br device achieved a peak power conversion efficiency(PCE) of 16.19% and maintained 96.7% of its initial PCE over 1500 h at room temperature under 25% relative humidity without any encapsulation.展开更多
To avoid the long time required for conventional sexual crossing, transgenic tobacco (Nicotiana tabacum L.) plants harboring phbA gene (encoding 3_ketothiolase) were used as the target plant for the second transfo...To avoid the long time required for conventional sexual crossing, transgenic tobacco (Nicotiana tabacum L.) plants harboring phbA gene (encoding 3_ketothiolase) were used as the target plant for the second transformation mediated by Agrobacterium tumefaciens (Smith et Townsend) Conn LBA4404 containing pZCB which was constructed by linking phbB (encoding acetoacetyl_CoA reductase), phbC (encoding PHB synthase) and ctp sequence to pBIB_HYG under the control of CaMV 35S promoter. The hygromycin resistant transformants were morphologically normal and stable integration of phbB and phbC was confirmed by PCR and PCR_Southern. Moreover, RT_PCR_DNA hybridization analysis showed that 6.67% of the transformed tobacco plants could express both phbB and phbC at transcriptional level.展开更多
Chronic heart failure （CHF）, a clinical syndrome resulting from the consequences of various cardiovascular diseases （CVDs）, is increasingly becoming a global cause of morbidity and mortality. We had earlier demons...Chronic heart failure （CHF）, a clinical syndrome resulting from the consequences of various cardiovascular diseases （CVDs）, is increasingly becoming a global cause of morbidity and mortality. We had earlier demonstrated that a 4-day forest bathing trip can provide an adjunctive therapeutic influence on patients with CHF. To further investigate the duration of the impact and the optimal frequency of forest bathing trips in patients with CHF, we recruited those subjects who had experienced the first forest bathing trip again after 4 weeks and randomly categorized them into two groups, namely, the urban control group （city） and the forest bathing group （forest）. After a second 4-day forest bathing trip, we observed a steady decline in the brain natriuretic peptide levels, a biomarker of heart failure, and an attenuated inflammatory response as well as oxidative stress. Thus, this exploratory study demonstrated the additive benefits of twice forest bathing trips in elderly patients with CHF, which could further pave the way for analyzing the effects of such interventions in CVDs.展开更多
Formulation and numerical evaluation of a novel twice-interpolation finite element method （TFEM） is presented for solid mechanics problems. In this method, the trial function for Galerkin weak form is constructed th...Formulation and numerical evaluation of a novel twice-interpolation finite element method （TFEM） is presented for solid mechanics problems. In this method, the trial function for Galerkin weak form is constructed through two stages of consecutive interpolation. The primary interpolation follows exactly the same procedure of standard FEM and is further reproduced according to both nodal values and averaged nodal gradients obtained from primary interpolation. The trial functions thus constructed have continuous nodal gradients and contain higher order polynomial without increasing total freedoms. Several benchmark examples and a real dam problem are used to examine the TFEM in terms of accuracy and convergence. Compared with standard FEM, TFEM can achieve significantly better accuracy and higher convergence rate, and the continuous nodal stress can be obtained without any smoothing operation. It is also found that TFEM is insensitive to the quality of the elemental mesh. In addition, the present TFEM can treat the incompressible material without any modification.展开更多
Until now, harvesting of flap elevations from the ipsilateral thigh twice in the same patient in two operations has not been reported. We harvested thigh flaps twice from the ipsilateral thigh of a single patient in s...Until now, harvesting of flap elevations from the ipsilateral thigh twice in the same patient in two operations has not been reported. We harvested thigh flaps twice from the ipsilateral thigh of a single patient in separate operations. A 44-year-old man had skin defects of the right thumb and the left middle finger. In the first operation, his right thumb was reconstructed by the hemi-pulp flap. The anterolateral thigh flap harvested from the left thigh transferred to the donor site defect of the hemi-pulp flap. Sixteen days after the first operation, another anterolateral thigh flap harvested from the left thigh transferred to the defect of the left middle finger. This operative procedure is very useful for cases requiring multi-flap transfer.展开更多
The demand for effective interventions to improve domain-specific academic outcomes for individuals with special needs at either end of the spectrum has existed for some time.Since the earlier contributions to the lit...The demand for effective interventions to improve domain-specific academic outcomes for individuals with special needs at either end of the spectrum has existed for some time.Since the earlier contributions to the literature documenting gifted individuals who were simultaneously exhibiting disabilities,there has been some progress in our understanding.We now know that in individuals with both gifts and disabilities,potentially,either or both of the exceptionalities can obscure the effects of the other,which significantly delays the average time to receive a diagnosis.Such delays in diagnosis detrimentally impact the the form of effective interventions without a diagnosis.The purpose of this paper is t quality of life across various domains because there can be no opportunity to receive help in o determine whether effective interventions exist to improve domain-specific(i.e.,social,emotional,or academic)outcomes for people with both gifts and disabilities.A query was performed using evidence databases TRIP and PDQ for“twice-exceptional,”“Giftedness,”“Disability,”and“intervention.”The four most relevant,freely available studies in English were selected for critique.Despite identifying potential threats to validity among the studies,methodological similarities among them were strong enough to confidently conclude that not only do effective interventions exist for the population of gifted with ADHD,but the outcomes of these interventions may also carry over into other domains resulting in indirect effects.展开更多
Objective To compare the efficacy and safety of twice - daily tacrolimus ( Tacrolimus BID; Prograf) vs once - daily prolonged release tacrolimus ( Tacrolimus QD; Advagraf) ,combined with steroids and mycophe-nolate mo...Objective To compare the efficacy and safety of twice - daily tacrolimus ( Tacrolimus BID; Prograf) vs once - daily prolonged release tacrolimus ( Tacrolimus QD; Advagraf) ,combined with steroids and mycophe-nolate mofetil in preventing acute rejection in De展开更多
为探究直接复热、水浴复热、微波复热和汽蒸复热方式对川菜回锅肉风味的影响,该研究以智能感官技术中的电子鼻和电子舌与氨基酸分析仪和顶空气相色谱-离子迁移谱(HS-GC-IMS)相结合,对回锅肉在4种复热方式处理下的风味特征进行了系统分...为探究直接复热、水浴复热、微波复热和汽蒸复热方式对川菜回锅肉风味的影响,该研究以智能感官技术中的电子鼻和电子舌与氨基酸分析仪和顶空气相色谱-离子迁移谱(HS-GC-IMS)相结合,对回锅肉在4种复热方式处理下的风味特征进行了系统分析。结果表明,电子鼻和电子舌能有效识别回锅肉的香气与口感特征;其中微波复热显著提升了回锅肉的营养价值。该研究共检测到17种游离氨基酸,经微波复热处理后的回锅肉总游离氨基酸含量达到最高值(202.08±6.68)mg/g。偏最小二乘判别分析(partial least squares discriminant analysis,PLS-DA)模型显示直接复热与汽蒸复热之间的风味差异最显著,根据变量重要性投影(variable importance in projection,VIP)值,筛选出22种关键差异香气物质,包括1-戊烯-3-醇、顺-2-戊烯醇等,可作为区分不同复热方式回锅肉香气特征的挥发性标志物。该研究为回锅肉的复热方式提供了重要理论依据,并为进一步探究不同复热方式对回锅肉风味的影响提供了数据支持。展开更多
Recently, Li et al. presented a two-party quantum private comparison scheme using Greenberger-- Horne-Zeitinger （GHZ） states and error-correcting code （ECC） lint. J. Theor. Phys. 52, 2818 （2013）], claiming it is...Recently, Li et al. presented a two-party quantum private comparison scheme using Greenberger-- Horne-Zeitinger （GHZ） states and error-correcting code （ECC） lint. J. Theor. Phys. 52, 2818 （2013）], claiming it is fault-tolerant and could be performed in a non-ideal scenario. However, there ex- ists a fatal loophole in their private comparison scheme under a special attack, namely the twice- Hadamard-CNOT attack. Specifically, a malicious party may intercept the other party＇s particles and execute Hadamard operations on the intercepted particles as well as on his or her own particles. Then, the malicious party could sequentially perform a controlled-NOT （CNOT） operation between intercepted particles and the auxiliary particles, as well as between his or her own particles and the auxiliary particles prepared in advance. By measuring the auxiliary particles, the secret input will be revealed to the malicious party without being detected. For resisting this special attack, a feasible improved scheme is proposed by introducing a permutation operator before the third party （TP） sends the particle sequences to each participant.展开更多
Objective To compare the efficacy and safety between twice- and triple-daily subcutaneous injection of premixed insulin aspart 30 ( BIAsp30) in serious T2DM patients with failure of oral anti-diabetic drugs(OADs) . Me...Objective To compare the efficacy and safety between twice- and triple-daily subcutaneous injection of premixed insulin aspart 30 ( BIAsp30) in serious T2DM patients with failure of oral anti-diabetic drugs(OADs) . Methods Fifty-six patients with inadequate control of hyper-glycemia by OADs were randomized into two展开更多
A new type of double function optical circulator for double fibers is proposed in this paper. Two fiber tips and lens twice are employed in this kind of device as the coupling system for what is believed to be the fir...A new type of double function optical circulator for double fibers is proposed in this paper. Two fiber tips and lens twice are employed in this kind of device as the coupling system for what is believed to be the first time. Because two fiber tips and lens twice are used, the function of optical circulator is duplicated in comparison with conventional optical circulator with single fiber tip. Thus the optical circulator has a low cost and a small volume comparatively. Excess loss of the coupling system and the misalignment of the lens twice in angular error and the position error to the developed circulator are analyzed and discussed by using Gauss wave and double integral in theory. The analysis results show that the excess loss is zero when each distance is equal to f between every adjacent： fraction and without misalignment error in the coupling system. In addition, the excess loss is increasing with increment of the distance error and the angular error. The errors of the angular of the optical axis to lens and the distance between the SL to lens are the main source of the excess loss. The higher the errors are, the higher the excess loss is. It＇s very important for reducing the misalignment errors in the coupling system with high ratio of coupling to achieve low excess loss. Details of design and excess loss in the coupling system of this circulator are presented.展开更多
基金supported by the National Natural Science Foundation of China (U22A20142)the Fundamental Research Funds for the Central Universities (2023JC007)。
文摘CsPbI_(2)Br perovskite solar cell has been extensively studied due to its exceptional thermal stability and relatively stable perovskite phase structure.However,the presence of bromine leads to a rapid crystallization rate of CsPbI_(2)Br films,resulting in small grain size and high defect density.Additionally,CsPbI_(2)Br demonstrates poor light absorption due to its wide bandgap.Therefore,it is crucial to control the crystallization rate and increase the film thickness to reduce defect density,enhance light absorption,and improve photovoltaic performance.In this study,we utilized a PbAc_(2)-incorporated twice spincoating(PTS) process to address these issues.Initially,PbAc_(2) was added to the CsPbI_(2)Br precursor solution to form a CsPbI_(2)Br film,which was then coated with the CsPbI_(2)Br precursor solution to produce the PTS film,Ac^(-)can delay the perovskite crystallization,leading to the formation of thicker and denser CsPbI_(2)Br films.Moreover,lone-pair electrons of the oxygen atom provided by Ac^(-)formed coordination bonds with under-coordinated Pb~(2+) ions to fill halogen ion vacancies,thereby reducing the defect density.Ultimately,the PTS CsPbI_(2)Br device achieved a peak power conversion efficiency(PCE) of 16.19% and maintained 96.7% of its initial PCE over 1500 h at room temperature under 25% relative humidity without any encapsulation.
文摘To avoid the long time required for conventional sexual crossing, transgenic tobacco (Nicotiana tabacum L.) plants harboring phbA gene (encoding 3_ketothiolase) were used as the target plant for the second transformation mediated by Agrobacterium tumefaciens (Smith et Townsend) Conn LBA4404 containing pZCB which was constructed by linking phbB (encoding acetoacetyl_CoA reductase), phbC (encoding PHB synthase) and ctp sequence to pBIB_HYG under the control of CaMV 35S promoter. The hygromycin resistant transformants were morphologically normal and stable integration of phbB and phbC was confirmed by PCR and PCR_Southern. Moreover, RT_PCR_DNA hybridization analysis showed that 6.67% of the transformed tobacco plants could express both phbB and phbC at transcriptional level.
基金supported by funds from the National Natural Science Foundation of China[31670701&81771520]the Science Technology Department of Zhejiang Province[2014C33130&2016C34002]+1 种基金the Natural Science Foundation of Zhejiang Province[Y15H050018&LY17C070004]the Health Bureau of Zhejiang Province[2015DTA001&2016KYB005]
文摘Chronic heart failure （CHF）, a clinical syndrome resulting from the consequences of various cardiovascular diseases （CVDs）, is increasingly becoming a global cause of morbidity and mortality. We had earlier demonstrated that a 4-day forest bathing trip can provide an adjunctive therapeutic influence on patients with CHF. To further investigate the duration of the impact and the optimal frequency of forest bathing trips in patients with CHF, we recruited those subjects who had experienced the first forest bathing trip again after 4 weeks and randomly categorized them into two groups, namely, the urban control group （city） and the forest bathing group （forest）. After a second 4-day forest bathing trip, we observed a steady decline in the brain natriuretic peptide levels, a biomarker of heart failure, and an attenuated inflammatory response as well as oxidative stress. Thus, this exploratory study demonstrated the additive benefits of twice forest bathing trips in elderly patients with CHF, which could further pave the way for analyzing the effects of such interventions in CVDs.
基金supported by the National Natural Science Foundation of China(50474053,50475134 and 50675081)the 863 project (2007AA042142)
文摘Formulation and numerical evaluation of a novel twice-interpolation finite element method （TFEM） is presented for solid mechanics problems. In this method, the trial function for Galerkin weak form is constructed through two stages of consecutive interpolation. The primary interpolation follows exactly the same procedure of standard FEM and is further reproduced according to both nodal values and averaged nodal gradients obtained from primary interpolation. The trial functions thus constructed have continuous nodal gradients and contain higher order polynomial without increasing total freedoms. Several benchmark examples and a real dam problem are used to examine the TFEM in terms of accuracy and convergence. Compared with standard FEM, TFEM can achieve significantly better accuracy and higher convergence rate, and the continuous nodal stress can be obtained without any smoothing operation. It is also found that TFEM is insensitive to the quality of the elemental mesh. In addition, the present TFEM can treat the incompressible material without any modification.
文摘Until now, harvesting of flap elevations from the ipsilateral thigh twice in the same patient in two operations has not been reported. We harvested thigh flaps twice from the ipsilateral thigh of a single patient in separate operations. A 44-year-old man had skin defects of the right thumb and the left middle finger. In the first operation, his right thumb was reconstructed by the hemi-pulp flap. The anterolateral thigh flap harvested from the left thigh transferred to the donor site defect of the hemi-pulp flap. Sixteen days after the first operation, another anterolateral thigh flap harvested from the left thigh transferred to the defect of the left middle finger. This operative procedure is very useful for cases requiring multi-flap transfer.
文摘The demand for effective interventions to improve domain-specific academic outcomes for individuals with special needs at either end of the spectrum has existed for some time.Since the earlier contributions to the literature documenting gifted individuals who were simultaneously exhibiting disabilities,there has been some progress in our understanding.We now know that in individuals with both gifts and disabilities,potentially,either or both of the exceptionalities can obscure the effects of the other,which significantly delays the average time to receive a diagnosis.Such delays in diagnosis detrimentally impact the the form of effective interventions without a diagnosis.The purpose of this paper is t quality of life across various domains because there can be no opportunity to receive help in o determine whether effective interventions exist to improve domain-specific(i.e.,social,emotional,or academic)outcomes for people with both gifts and disabilities.A query was performed using evidence databases TRIP and PDQ for“twice-exceptional,”“Giftedness,”“Disability,”and“intervention.”The four most relevant,freely available studies in English were selected for critique.Despite identifying potential threats to validity among the studies,methodological similarities among them were strong enough to confidently conclude that not only do effective interventions exist for the population of gifted with ADHD,but the outcomes of these interventions may also carry over into other domains resulting in indirect effects.
文摘Objective To compare the efficacy and safety of twice - daily tacrolimus ( Tacrolimus BID; Prograf) vs once - daily prolonged release tacrolimus ( Tacrolimus QD; Advagraf) ,combined with steroids and mycophe-nolate mofetil in preventing acute rejection in De
文摘为探究直接复热、水浴复热、微波复热和汽蒸复热方式对川菜回锅肉风味的影响,该研究以智能感官技术中的电子鼻和电子舌与氨基酸分析仪和顶空气相色谱-离子迁移谱(HS-GC-IMS)相结合,对回锅肉在4种复热方式处理下的风味特征进行了系统分析。结果表明,电子鼻和电子舌能有效识别回锅肉的香气与口感特征;其中微波复热显著提升了回锅肉的营养价值。该研究共检测到17种游离氨基酸,经微波复热处理后的回锅肉总游离氨基酸含量达到最高值(202.08±6.68)mg/g。偏最小二乘判别分析(partial least squares discriminant analysis,PLS-DA)模型显示直接复热与汽蒸复热之间的风味差异最显著,根据变量重要性投影(variable importance in projection,VIP)值,筛选出22种关键差异香气物质,包括1-戊烯-3-醇、顺-2-戊烯醇等,可作为区分不同复热方式回锅肉香气特征的挥发性标志物。该研究为回锅肉的复热方式提供了重要理论依据,并为进一步探究不同复热方式对回锅肉风味的影响提供了数据支持。
基金Acknowledgements This work was supported by the National Natural Science Foundation of China （Grant Nos. 61103235, 61373131, and 61373016）, the Priority Academic Program Development of Jiangsu Higher Education Institutions （PAPD）, the Natural Science Foundation of Jiangsu Province under Grant No. BK20140651, and the Scientific Research Innovation Project for College Graduates of Jiangsu Province （Grant No. KYLX_0855）.
文摘Recently, Li et al. presented a two-party quantum private comparison scheme using Greenberger-- Horne-Zeitinger （GHZ） states and error-correcting code （ECC） lint. J. Theor. Phys. 52, 2818 （2013）], claiming it is fault-tolerant and could be performed in a non-ideal scenario. However, there ex- ists a fatal loophole in their private comparison scheme under a special attack, namely the twice- Hadamard-CNOT attack. Specifically, a malicious party may intercept the other party＇s particles and execute Hadamard operations on the intercepted particles as well as on his or her own particles. Then, the malicious party could sequentially perform a controlled-NOT （CNOT） operation between intercepted particles and the auxiliary particles, as well as between his or her own particles and the auxiliary particles prepared in advance. By measuring the auxiliary particles, the secret input will be revealed to the malicious party without being detected. For resisting this special attack, a feasible improved scheme is proposed by introducing a permutation operator before the third party （TP） sends the particle sequences to each participant.
文摘Objective To compare the efficacy and safety between twice- and triple-daily subcutaneous injection of premixed insulin aspart 30 ( BIAsp30) in serious T2DM patients with failure of oral anti-diabetic drugs(OADs) . Methods Fifty-six patients with inadequate control of hyper-glycemia by OADs were randomized into two
文摘A new type of double function optical circulator for double fibers is proposed in this paper. Two fiber tips and lens twice are employed in this kind of device as the coupling system for what is believed to be the first time. Because two fiber tips and lens twice are used, the function of optical circulator is duplicated in comparison with conventional optical circulator with single fiber tip. Thus the optical circulator has a low cost and a small volume comparatively. Excess loss of the coupling system and the misalignment of the lens twice in angular error and the position error to the developed circulator are analyzed and discussed by using Gauss wave and double integral in theory. The analysis results show that the excess loss is zero when each distance is equal to f between every adjacent： fraction and without misalignment error in the coupling system. In addition, the excess loss is increasing with increment of the distance error and the angular error. The errors of the angular of the optical axis to lens and the distance between the SL to lens are the main source of the excess loss. The higher the errors are, the higher the excess loss is. It＇s very important for reducing the misalignment errors in the coupling system with high ratio of coupling to achieve low excess loss. Details of design and excess loss in the coupling system of this circulator are presented.
