Exploring materials with high electrochemical activity is of keen interest for electrochemistry-controlled optical and energy storage devices.However,it remains a great challenge for transition metal oxides to meet th...Exploring materials with high electrochemical activity is of keen interest for electrochemistry-controlled optical and energy storage devices.However,it remains a great challenge for transition metal oxides to meet this feature due to their low electron conductivity and insufficient reaction sites.Here,we propose a type of transition metal phosphate(NiHPO_(4)·3H_(2)O,NHP)by a facile and scalable electrodeposition method,which can achieve the capability of efficient ion accommodation and injection/extraction for electrochromic energy storage applications.Specifically,the NHP film with an ultra-high transmittance(approach to 100%)achieves a large optical modulation(90.8%at 500 nm),high coloration efficiency(75.4 cm^(2)C^(-1)at 500 nm),and a high specific capacity of 47.8 mAh g^(-1)at 0.4 A g^(-1).Furthermore,the transformation mechanism of NHP upon electrochemical reaction is systematically elucidated using in situ and ex situ techniques.Ultimately,a large-area electrochromic smart window with 100 cm^(2)is constructed based on the NHP electrode,displaying superior electrochromic energy storage performance in regulating natural light and storing electrical charges.Our findings may open up new strategies for developing advanced electrochromic energy storage materials and smart windows.展开更多
Wireless charging has played a crucial role in electric vehicle charging market presently.As electric vehicles will be important nodes access to the smart grid in the future,the security flow of energy and information...Wireless charging has played a crucial role in electric vehicle charging market presently.As electric vehicles will be important nodes access to the smart grid in the future,the security flow of energy and information between wireless charging infrastructure and the smart grid will directly affect the security of the smart grid.A novel secure wireless transfer method for energy and information transfer simultaneously has been represented in this paper by designing a reasonable dual-band coil for simultaneous transmission of energy and information,using improved chaotic modulation and a three times handshake protocol for encrypting energy and information between wireless charging infrastructure and the smart grid.Both the simulation and experiments show that the security of energy transmission can be effectively improved by this structure,in the premise of ensuring the power and efficiency of wireless energy transmission.展开更多
This study uses the smart phone with the Android system to construct a cloud-side smart switch system in the client-server architecture with the Android open platform system, using microprocessors(MCU 16F690) as the t...This study uses the smart phone with the Android system to construct a cloud-side smart switch system in the client-server architecture with the Android open platform system, using microprocessors(MCU 16F690) as the thermostat controller and combined with Raspberry Pi. The computing technology extends the control of the constant temperature from the local to the cloud, allowing the user to view the temperature status recorded by the cloud server using the smart phone application(App) or web browser. It can even remotely control the heating power of the smart switch for the heating device in the Internet control environment and use the proportional-integral-derivative(PID) control and the pulse-width modulation(PWM) technology to achieve intelligent constant temperature control.The proposed control system uses the expert PID control as the core to calculate the duty cycle of the PWM signal to control the power output of the smart switch for the constant temperature water tank. The experiment results verify the effectiveness of the proposed system.展开更多
OBJECTIVE To evaluate the clinical efficacy and toxicities of simultaneous modulated accelerated radiotherapy （SMART） and concurrent chemotherapy for locally advanced nasopharyngeal carcinoma. METHODS Eightyseven pa...OBJECTIVE To evaluate the clinical efficacy and toxicities of simultaneous modulated accelerated radiotherapy （SMART） and concurrent chemotherapy for locally advanced nasopharyngeal carcinoma. METHODS Eightyseven patients with nasopharyngeal carcinoma received SMART from April 2002 to September 2006. According to the UICC staging system, 30 patients were diagnosed as stage IIb, 42 patients stage III, 13 patients stage IVa and 2 patients stage IVb. The intensitymodulated radiotherapy was delivered with the ＂step and shoot＂ SMART technique with the prescribed dose of 66-76 Gy （2.2-2.4 Gy/day） to the gross tumor volume （GTV） and positive neck lymph nodes （GTVLN）, with 60 Gy （2.0 Gy/day） to the highrisk clinical target volume （CTV1）, encompassing the area around the nasopharynx and the upper neck, and with 54 Gy （1.8 Gy/day） to the lowrisk clinical target volume （CTV2）, including the lower neck and supraclavicular area. Among all the patients, 31 received 2 cycles of SMART concurrently with 5 fluorouracil （5-Fu） and cisplatin （the FP group） and 56 received 2 cycles of concurrent cisplatin. All the patients received 3 to 4 cycles of adjuvant combination chemotherapy of cisplatin and 5fluorouracil starting from the 1st month after completion of SMART. RESULTS With a median follow up of 59 months （ranging from 19 to 85 months）, the 1, 2 and 3year overall survival rates were 100%, 94.6% and 91.3% respectively. Acute mucositis and pharyngitis were more frequently observed in the FP group than in the cisplatin group. CONCLUSION SMART technique provides an excellent opportunity to spare normal tissue and is probably more biologically effective. Combination of single cisplatin was more tolerable.展开更多
非侵入式负荷监测(non-intrusive load monitoring,NILM)技术对于实现智慧用电与管理具有重要意义。针对现有的非侵入式负荷监测方法在高噪声环境下对特征相似电器以及微小负荷变化监测精度不足的难题,提出了一种基于单位力操作视觉变...非侵入式负荷监测(non-intrusive load monitoring,NILM)技术对于实现智慧用电与管理具有重要意义。针对现有的非侵入式负荷监测方法在高噪声环境下对特征相似电器以及微小负荷变化监测精度不足的难题,提出了一种基于单位力操作视觉变换器的非侵入式负荷监测(non-intrusive load monitoring based on unit force operated vision transformer,UFONILM)模型的非侵入式负荷监测的深度学习框架。UFONILM模型的单位力操作(unit force operated,UFO)模块通过层归一化和一系列卷积层有效地提取和利用了多尺度的时间序列数据,特征。在标准的UK-DALE数据集上进行的实验显示,UFONILM模型在准确性和F1得分上均优于现有方法,特别是在细粒度的负荷监测场景中。研制了基于UFONILM模型的嵌入式系统,实现了边缘计算的非侵入式负荷监测,可实时监测和响应电网中的异常用电行为,如违规充电事件。实验检测证明,UFONILM模型嵌入式非侵入式负荷监测方法在监测效率方面具有显著的提升,具有高效、便捷安装、可扩展等特点。展开更多
基金financially the National Natural Science Foundation of China(U2004175,51902086 and 62222402)China Postdoctoral Science Foundation(2022M711036)the Key Scientific Research Project plan of the University in Henan Province(22A430002)。
文摘Exploring materials with high electrochemical activity is of keen interest for electrochemistry-controlled optical and energy storage devices.However,it remains a great challenge for transition metal oxides to meet this feature due to their low electron conductivity and insufficient reaction sites.Here,we propose a type of transition metal phosphate(NiHPO_(4)·3H_(2)O,NHP)by a facile and scalable electrodeposition method,which can achieve the capability of efficient ion accommodation and injection/extraction for electrochromic energy storage applications.Specifically,the NHP film with an ultra-high transmittance(approach to 100%)achieves a large optical modulation(90.8%at 500 nm),high coloration efficiency(75.4 cm^(2)C^(-1)at 500 nm),and a high specific capacity of 47.8 mAh g^(-1)at 0.4 A g^(-1).Furthermore,the transformation mechanism of NHP upon electrochemical reaction is systematically elucidated using in situ and ex situ techniques.Ultimately,a large-area electrochromic smart window with 100 cm^(2)is constructed based on the NHP electrode,displaying superior electrochromic energy storage performance in regulating natural light and storing electrical charges.Our findings may open up new strategies for developing advanced electrochromic energy storage materials and smart windows.
基金This work is supported by International Science&Technology Cooperation Program of China under contract No.2016YFE0102200.
文摘Wireless charging has played a crucial role in electric vehicle charging market presently.As electric vehicles will be important nodes access to the smart grid in the future,the security flow of energy and information between wireless charging infrastructure and the smart grid will directly affect the security of the smart grid.A novel secure wireless transfer method for energy and information transfer simultaneously has been represented in this paper by designing a reasonable dual-band coil for simultaneous transmission of energy and information,using improved chaotic modulation and a three times handshake protocol for encrypting energy and information between wireless charging infrastructure and the smart grid.Both the simulation and experiments show that the security of energy transmission can be effectively improved by this structure,in the premise of ensuring the power and efficiency of wireless energy transmission.
文摘This study uses the smart phone with the Android system to construct a cloud-side smart switch system in the client-server architecture with the Android open platform system, using microprocessors(MCU 16F690) as the thermostat controller and combined with Raspberry Pi. The computing technology extends the control of the constant temperature from the local to the cloud, allowing the user to view the temperature status recorded by the cloud server using the smart phone application(App) or web browser. It can even remotely control the heating power of the smart switch for the heating device in the Internet control environment and use the proportional-integral-derivative(PID) control and the pulse-width modulation(PWM) technology to achieve intelligent constant temperature control.The proposed control system uses the expert PID control as the core to calculate the duty cycle of the PWM signal to control the power output of the smart switch for the constant temperature water tank. The experiment results verify the effectiveness of the proposed system.
文摘OBJECTIVE To evaluate the clinical efficacy and toxicities of simultaneous modulated accelerated radiotherapy （SMART） and concurrent chemotherapy for locally advanced nasopharyngeal carcinoma. METHODS Eightyseven patients with nasopharyngeal carcinoma received SMART from April 2002 to September 2006. According to the UICC staging system, 30 patients were diagnosed as stage IIb, 42 patients stage III, 13 patients stage IVa and 2 patients stage IVb. The intensitymodulated radiotherapy was delivered with the ＂step and shoot＂ SMART technique with the prescribed dose of 66-76 Gy （2.2-2.4 Gy/day） to the gross tumor volume （GTV） and positive neck lymph nodes （GTVLN）, with 60 Gy （2.0 Gy/day） to the highrisk clinical target volume （CTV1）, encompassing the area around the nasopharynx and the upper neck, and with 54 Gy （1.8 Gy/day） to the lowrisk clinical target volume （CTV2）, including the lower neck and supraclavicular area. Among all the patients, 31 received 2 cycles of SMART concurrently with 5 fluorouracil （5-Fu） and cisplatin （the FP group） and 56 received 2 cycles of concurrent cisplatin. All the patients received 3 to 4 cycles of adjuvant combination chemotherapy of cisplatin and 5fluorouracil starting from the 1st month after completion of SMART. RESULTS With a median follow up of 59 months （ranging from 19 to 85 months）, the 1, 2 and 3year overall survival rates were 100%, 94.6% and 91.3% respectively. Acute mucositis and pharyngitis were more frequently observed in the FP group than in the cisplatin group. CONCLUSION SMART technique provides an excellent opportunity to spare normal tissue and is probably more biologically effective. Combination of single cisplatin was more tolerable.
文摘非侵入式负荷监测(non-intrusive load monitoring,NILM)技术对于实现智慧用电与管理具有重要意义。针对现有的非侵入式负荷监测方法在高噪声环境下对特征相似电器以及微小负荷变化监测精度不足的难题,提出了一种基于单位力操作视觉变换器的非侵入式负荷监测(non-intrusive load monitoring based on unit force operated vision transformer,UFONILM)模型的非侵入式负荷监测的深度学习框架。UFONILM模型的单位力操作(unit force operated,UFO)模块通过层归一化和一系列卷积层有效地提取和利用了多尺度的时间序列数据,特征。在标准的UK-DALE数据集上进行的实验显示,UFONILM模型在准确性和F1得分上均优于现有方法,特别是在细粒度的负荷监测场景中。研制了基于UFONILM模型的嵌入式系统,实现了边缘计算的非侵入式负荷监测,可实时监测和响应电网中的异常用电行为,如违规充电事件。实验检测证明,UFONILM模型嵌入式非侵入式负荷监测方法在监测效率方面具有显著的提升,具有高效、便捷安装、可扩展等特点。
