Since the nuclear disaster occurred from huge earthquake in Japan 2011, Japanese energy generation system has been expected to prioritize safety and trustworthiness. To meet this requirement, distributed power supply ...Since the nuclear disaster occurred from huge earthquake in Japan 2011, Japanese energy generation system has been expected to prioritize safety and trustworthiness. To meet this requirement, distributed power supply systems are considered to be one of solutions. In this study, we aimed to conserve energy and reduce carbon dioxide emission of supermarket which installed a novel environment-friendly dispersed power. We focused the energy used by refrigerated cabinets. We built small scale model of supermarket which was equipped with dispersed power. From this scale model, the energy conservation effect of supercooling is from 10% to 25% during the summertime and intermediate time. At last, we found that when outside temperature is about 14 ℃ or more, supercooling was effective. In addition, since energy consumption of refrigerated cabinet is influenced by inside enthalpy, we controlled the inside air temperature and humidity by installing desiccant system and examined its effect.展开更多
Recycling electric vehicle batteries has become a priority in China.NEW stationary power storage cabinets have been set up beside the parking lots of the Green Eco Manufacture(GEM)Industrial Park in Wuhan,Hubei Provin...Recycling electric vehicle batteries has become a priority in China.NEW stationary power storage cabinets have been set up beside the parking lots of the Green Eco Manufacture(GEM)Industrial Park in Wuhan,Hubei Province,to charge electric vehicles(EVs).展开更多
In the self-built fruit and vegetable sorting warehouse of Lushang Group,the system is automatically scanning the QR code for agricultural product and conducts pesticide residue testing on fruits and vegetables;new pr...In the self-built fruit and vegetable sorting warehouse of Lushang Group,the system is automatically scanning the QR code for agricultural product and conducts pesticide residue testing on fruits and vegetables;new products from foreign trade factories will be directly transported to Ginza Supermarket through the“Direct Express for Domestic Product”channel,and will be shelved on the“Lushang Life”service platform within 48 hours;in front of the campus intelligent milk cabinet independently launched by Lushang Technology,students receive pasteurized milk by brushing their faces,and the data about milk source farms and sterilization parameters are sent to the parents simultaneously.This is the daily scenario of digital applications by Lushang Group’s full supply chain management.展开更多
The effect of gradient exhaust strategy and blind plate installation on the inhibition of backflow and thermal stratification in data center cabinets is systematically investigated in this study through numericalmetho...The effect of gradient exhaust strategy and blind plate installation on the inhibition of backflow and thermal stratification in data center cabinets is systematically investigated in this study through numericalmethods.The validated Re-Normalization Group(RNG)k-ε turbulence model was used to analyze airflow patterns within cabinet structures equipped with backplane air conditioning.Key findings reveal that server-generated thermal plumes induce hot air accumulation at the cabinet apex,creating a 0.8℃ temperature elevation at the top server’s inlet compared to the ideal situation(23℃).Strategic increases in backplane fan exhaust airflow rates reduce server 1’s inlet temperature from 26.1℃(0%redundancy case)to 23.1℃(40%redundancy case).Gradient exhaust strategies achieve equivalent server temperature performance to uniform exhaust distributions while requiring 25%less redundant airflow.This approach decreases the recirculation ratio from1.52%(uniformexhaust at 15%redundancy)to 0.57%(gradient exhaust at equivalent redundancy).Comparative analyses demonstrate divergent thermal behaviors:in bottom-server-absent configurations,gradient exhaust reduces top server inlet temperatures by 1.6℃vs.uniformexhaust,whereas top-serverabsent configurations exhibit a 1.8℃ temperature increase under gradient conditions.The blind plate implementation achieves a 0.4℃ top server temperature reduction compared to 15%-redundancy uniform exhaust systems without requiring additional airflow redundancy.Partially installed server arrangements with blind plates maintain thermal characteristics comparable to fully populated cabinets.This study validates gradient exhaust and blind plate technologies as effective countermeasures against cabinet-scale thermal recirculation,providing actionable insights for optimizing backplane air conditioning systems in mission-critical data center environments.展开更多
背景:神经内分泌肿瘤(NET)是一组起源于胃肠道、肺和胰腺等部位的异质性恶性肿瘤。晚期NET的治疗选择有限,且大多数患者最终会对现有疗法产生耐药性。卡博替尼是一种口服小分子多靶点酪氨酸激酶抑制剂,能够抑制血管内皮生长因子(VEGF)...背景:神经内分泌肿瘤(NET)是一组起源于胃肠道、肺和胰腺等部位的异质性恶性肿瘤。晚期NET的治疗选择有限,且大多数患者最终会对现有疗法产生耐药性。卡博替尼是一种口服小分子多靶点酪氨酸激酶抑制剂,能够抑制血管内皮生长因子(VEGF)受体、MET、AXL和RET等靶点,其在Ⅱ期临床试验中已显示出对晚期NET的临床活性。方法:CABINET试验是一项多中心、Ⅲ期临床试验,由美国国家癌症研究所(NCI)资助的联盟(Alliance for Clinical Trials in Oncology)设计和实施。展开更多
Aiming to enable robust large-scale fault diagnostics and optimized control for supermarket refrigerationsystems, a data-driven grey box model for an evaporator and its surrounding cooling cabinet (or room) ispresente...Aiming to enable robust large-scale fault diagnostics and optimized control for supermarket refrigerationsystems, a data-driven grey box model for an evaporator and its surrounding cooling cabinet (or room) ispresented. It is a non-linear model with two states: the cabinet temperature and the refrigerant mass in theevaporator. To demonstrate its applicability, data with one-minute sampling resolution from ten evaporators ina supermarket in Otterup (Denmark) was used. The model parameters were estimated using a Kalman filter andthe maximum likelihood method. Since the dynamical properties of the cabinets constantly change as goodsare added and removed, the parameters were re-estimated for each night, over a period of approximately 2.5years. The model is validated through a statistical analysis of the residuals and the importance of the ongoingre-estimation of parameters is highlighted. Furthermore, the physical meaning of the estimated parameters isdiscussed and potential applications for characterization and classification of cabinets are demonstrated, byshowing how they can be differentiated as either open- or closed cabinets or rooms, using only the estimatedheat transfer coefficients and heat capacities. For a selected case it is shown that the estimated parametervalues are close to physics derived values, and that the accuracy measured by the standard errors of theestimates is approximately ±10% relative to the estimated values. The analysis demonstrates that the modelis robust, accurate and reliable in terms of estimating physically meaningful parameters and it is thereforeappropriate for large-scale implementation.展开更多
Due to the practical problems of the high costs and the long development cycle of China’s cabinet production,a computer-aided design method of the cabinet based on style imagery is proposed.According to the principle...Due to the practical problems of the high costs and the long development cycle of China’s cabinet production,a computer-aided design method of the cabinet based on style imagery is proposed.According to the principle of the conjoint analysis method, the rough set theory and the weight coefficient of different components of the cabinet,a multi-dimensional model of style imagery to evaluate the cabinet is built. Then the related constants of style imagery are calculated and the cabinet components library is also built by the three-dimensional modeling.Finally,with recombinant technology and the mapping model between cabinet style and external characteristics,the prototype system based on Visual Studio is proposed.This system actualizes the bidirectional reasoning between product style imagery and the shape features,which can assist designers to produce more creative designs,greatly improve the efficiency of cabinet development and increase the profits of companies.展开更多
Courier services develop fast as e-commerce advances but challenged by the problem of ＂the last kilometer＂. The research analyzed problems of courier ser- vices in universities or colleges with a case study of unive...Courier services develop fast as e-commerce advances but challenged by the problem of ＂the last kilometer＂. The research analyzed problems of courier ser- vices in universities or colleges with a case study of universities in Tianjin and pro- posed suggestions on intelligent courier services.展开更多
TiO_(2)photocatalysts have been widely studied and applied for removing bacteria,but its antibacterial efficiency is limited to the ultraviolet(UV)range of the solar spectrum.In this work,we use the gold(Au)nanorods t...TiO_(2)photocatalysts have been widely studied and applied for removing bacteria,but its antibacterial efficiency is limited to the ultraviolet(UV)range of the solar spectrum.In this work,we use the gold(Au)nanorods to enhance the visible and near-infrared(NIR)light absorption of TiO_(2)NBs,a typical UV light photocatalyst,thus the enhancement of its full solar spectrum(UV,visible and NIR)photocatalytic antibacterial properties is achieved.Preliminary surface plasmon resonance(SPR)enhancement photocatalytic antibacterial mechanism is suggested.On one hand,transverse and longitudinal SPR of Au NRs is beneficial for visible and NIR light utilization.On the other hand,Au NRs combined with TiO_(2)NBs to form the heterostructure,which can improve the photogenerated carrier separation and direct electron transfer increases the hot electron concentration while Au NRs as the electron channel can well restrain charge recombination.finally produces the high yield of radical oxygen species and exhibits a superior antibacterial efficiency.Furthermore,we design a sterilization file cabinet with Au NR/TiO_(2)NB heterostructures as the photocatalytic coating plates.Our study reveals that Au NR/TiO_(2)NB heterostructure is a potential candidate for sterilization of bacteria and archives protection.展开更多
In order to understand the vibration characteristic of system structure of electronic equipment cabinet within the particular vibration frequency,the finite element analysis software-ANSYS is used to simulate the test...In order to understand the vibration characteristic of system structure of electronic equipment cabinet within the particular vibration frequency,the finite element analysis software-ANSYS is used to simulate the tests of random vibrations of the cabinet system and obtain the isopleths graph of deformation and stress of the cabinet.It can confirm maximum of deformation and stress of the cabinet and position happened.Through more analysis of the frequency response curve,which can confirm harm- ful consequences random vibrations caused and weak link of the cabinet structure.The numerical simulation results are in good a- greement with the experimental results.It shows that this research provides an efficient method for the anti-seismic design and the dynamic optimization design.展开更多
Base on Prof. Maa Dah-You’s general theory of the microperforated-panel (MPP) absorber, We designed a noise reduction structure-sound attenuating cabinet (SAC). It can be applied to air-cooled communication products ...Base on Prof. Maa Dah-You’s general theory of the microperforated-panel (MPP) absorber, We designed a noise reduction structure-sound attenuating cabinet (SAC). It can be applied to air-cooled communication products to reduce system noise. This article introduces engineering design method of SAC and laboratory test noise reduction results of application of SAC.展开更多
In this study,a novel non-intrusive temperature rise fault-identification method for a distribution cabinet based on tensor block-matching is proposed.Two-stage data repair is used to reconstruct the temperature-field...In this study,a novel non-intrusive temperature rise fault-identification method for a distribution cabinet based on tensor block-matching is proposed.Two-stage data repair is used to reconstruct the temperature-field information to support the demand for temperature rise fault-identification of non-intrusive distribution cabinets.In the coarse-repair stage,this method is based on the outside temperature information of the distribution cabinet,using tensor block-matching technology to search for an appropriate tensor block in the temperature-field tensor dictionary,filling the target space area from the outside to the inside,and realizing the reconstruction of the three-dimensional temperature field inside the distribution cabinet.In the fine-repair stage,tensor super-resolution technology is used to fill the temperature field obtained from coarse repair to realize the smoothing of the temperature-field information inside the distribution cabinet.Non-intrusive temperature rise fault-identification is realized by setting clustering rules and temperature thresholds to compare the location of the heat source with the location of the distribution cabinet components.The simulation results show that the temperature-field reconstruction error is reduced by 82.42%compared with the traditional technology,and the temperature rise fault-identification accuracy is greater than 86%,verifying the feasibility and effectiveness of the temperature-field reconstruction and temperature rise fault-identification.展开更多
With the advent of Internet life in recent years, online shopping has be- come a new way of life, shopping patterns emerge in an endless stream especially for college students. With the increasing of the express deliv...With the advent of Internet life in recent years, online shopping has be- come a new way of life, shopping patterns emerge in an endless stream especially for college students. With the increasing of the express delivery, express distribu- tionproblems are becoming more and more serious, ＂the last one hundred meters＂ restricts the long-term development of the campus express. Facing these problems, taking Universities in Tianjin as an example, this paper puts forward the distribution scheme of the intelligent terminal of the ＂postal island＂. The feasibility and necessity of the intelligent express management system are vedfied through analyzing the un- iversities in Tianiin.展开更多
After the outbreak of the Russia–Ukraine conflict, Japan wasted no time in advancing its national strategy and actively promoted shuttle diplomacy with the United States(U.S.), Europe, East Asia, and neighboring coun...After the outbreak of the Russia–Ukraine conflict, Japan wasted no time in advancing its national strategy and actively promoted shuttle diplomacy with the United States(U.S.), Europe, East Asia, and neighboring countries of Ukraine around sanctions against Russia based on strategic considerations and the goal of maximizing national interests. Japan regarded this conflict as an important opportunity for an international strategic game, in an attempt to move and overturn the postwar international order and reconstruct the new global order with the U.S., Europe, and Japan as the core countries dominating the military, science and technology, and economic spheres. In response to the crisis, Japan made a brief policy adjustment—from the initial hesitation to the imposition of active sanctions and pressure on Russia—to reverse the passive situation on the issue of the Four Northern Islands and weaken Russia’s strength. Japan also took the opportunity to promote the “China threat theory”;strengthen the quadrilateral mechanism between the U.S., Japan, India, and Australia;provoke regional confrontation;and try to gain a new Cold War dividend.展开更多
Nationalism threatens to imbue modern Japan with a rationale for increased militarism.Post-war nationalism was a reason Japan had launched war abroad,but the reinvigoration of Japanese nationalism is burgeoning under ...Nationalism threatens to imbue modern Japan with a rationale for increased militarism.Post-war nationalism was a reason Japan had launched war abroad,but the reinvigoration of Japanese nationalism is burgeoning under two-term Prime Minister Shinzo Abe.His sense of nationalism,which has domestic and international repercussions,has developed under the influence of his family political genes.Abe's nationalism is being carried out in internal and external policies,with increasingly negative impact on domestic and regional order.The international community should remain vigilant of his right-wing politics.展开更多
1698年,一只庋藏了众多医疗俗物及其他东方博物展品的中国橱柜(The China Cabinet)被捐赠予英国皇家学会,汉斯·斯隆在《哲学汇刊》上发表了对此柜的四篇解说。The China Cabinet内存储的“外科”用刀,修甲、采耳、按摩工具为重构...1698年,一只庋藏了众多医疗俗物及其他东方博物展品的中国橱柜(The China Cabinet)被捐赠予英国皇家学会,汉斯·斯隆在《哲学汇刊》上发表了对此柜的四篇解说。The China Cabinet内存储的“外科”用刀,修甲、采耳、按摩工具为重构明清中国民俗医疗器物史提供了宝贵的一手资料。在《哲学汇刊》大传统指引下,汉斯·斯隆借助“了解”“同情”的活态叙述、细致严谨的图像语言两项叙述技法成功地全景呈现了The China Cabinet所见中国民俗医疗图景。在表达过程中,包容互鉴的文明对话心态起到了基础而积极的效应。展开更多
In this paper, workflow technology is firstly applied to the cabinet dyeing order system for cabinet dyeing unit. The system setup workflow models which conform to the existing system and resource and the system adopt...In this paper, workflow technology is firstly applied to the cabinet dyeing order system for cabinet dyeing unit. The system setup workflow models which conform to the existing system and resource and the system adopts flexible workflow process mechanism to enhance the adaptability and opening and solve the exception and abnormality manipulation. The results show that it can not only provide the better dyeing order process, but also set dyer free from the fussy daily business and predigest task flow and heighten production efficiency.展开更多
Considering the actual operating experience of the Daode Wind Farm, this paper analyzes the rea-sons for the fault of the lO-kV switch cabinet. Some technical improvements and management measures, such as implementing...Considering the actual operating experience of the Daode Wind Farm, this paper analyzes the rea-sons for the fault of the lO-kV switch cabinet. Some technical improvements and management measures, such as implementing the anti-accident technical measures, improving the installation and debugging level, and strengthening operation inspection, are proposed.展开更多
文摘Since the nuclear disaster occurred from huge earthquake in Japan 2011, Japanese energy generation system has been expected to prioritize safety and trustworthiness. To meet this requirement, distributed power supply systems are considered to be one of solutions. In this study, we aimed to conserve energy and reduce carbon dioxide emission of supermarket which installed a novel environment-friendly dispersed power. We focused the energy used by refrigerated cabinets. We built small scale model of supermarket which was equipped with dispersed power. From this scale model, the energy conservation effect of supercooling is from 10% to 25% during the summertime and intermediate time. At last, we found that when outside temperature is about 14 ℃ or more, supercooling was effective. In addition, since energy consumption of refrigerated cabinet is influenced by inside enthalpy, we controlled the inside air temperature and humidity by installing desiccant system and examined its effect.
文摘Recycling electric vehicle batteries has become a priority in China.NEW stationary power storage cabinets have been set up beside the parking lots of the Green Eco Manufacture(GEM)Industrial Park in Wuhan,Hubei Province,to charge electric vehicles(EVs).
文摘In the self-built fruit and vegetable sorting warehouse of Lushang Group,the system is automatically scanning the QR code for agricultural product and conducts pesticide residue testing on fruits and vegetables;new products from foreign trade factories will be directly transported to Ginza Supermarket through the“Direct Express for Domestic Product”channel,and will be shelved on the“Lushang Life”service platform within 48 hours;in front of the campus intelligent milk cabinet independently launched by Lushang Technology,students receive pasteurized milk by brushing their faces,and the data about milk source farms and sterilization parameters are sent to the parents simultaneously.This is the daily scenario of digital applications by Lushang Group’s full supply chain management.
基金financially supported by the Basic Research Funds for the Central Government“Innovative Team of Zhejiang University”under contract number(2022FZZX01-09).
文摘The effect of gradient exhaust strategy and blind plate installation on the inhibition of backflow and thermal stratification in data center cabinets is systematically investigated in this study through numericalmethods.The validated Re-Normalization Group(RNG)k-ε turbulence model was used to analyze airflow patterns within cabinet structures equipped with backplane air conditioning.Key findings reveal that server-generated thermal plumes induce hot air accumulation at the cabinet apex,creating a 0.8℃ temperature elevation at the top server’s inlet compared to the ideal situation(23℃).Strategic increases in backplane fan exhaust airflow rates reduce server 1’s inlet temperature from 26.1℃(0%redundancy case)to 23.1℃(40%redundancy case).Gradient exhaust strategies achieve equivalent server temperature performance to uniform exhaust distributions while requiring 25%less redundant airflow.This approach decreases the recirculation ratio from1.52%(uniformexhaust at 15%redundancy)to 0.57%(gradient exhaust at equivalent redundancy).Comparative analyses demonstrate divergent thermal behaviors:in bottom-server-absent configurations,gradient exhaust reduces top server inlet temperatures by 1.6℃vs.uniformexhaust,whereas top-serverabsent configurations exhibit a 1.8℃ temperature increase under gradient conditions.The blind plate implementation achieves a 0.4℃ top server temperature reduction compared to 15%-redundancy uniform exhaust systems without requiring additional airflow redundancy.Partially installed server arrangements with blind plates maintain thermal characteristics comparable to fully populated cabinets.This study validates gradient exhaust and blind plate technologies as effective countermeasures against cabinet-scale thermal recirculation,providing actionable insights for optimizing backplane air conditioning systems in mission-critical data center environments.
文摘背景:神经内分泌肿瘤(NET)是一组起源于胃肠道、肺和胰腺等部位的异质性恶性肿瘤。晚期NET的治疗选择有限,且大多数患者最终会对现有疗法产生耐药性。卡博替尼是一种口服小分子多靶点酪氨酸激酶抑制剂,能够抑制血管内皮生长因子(VEGF)受体、MET、AXL和RET等靶点,其在Ⅱ期临床试验中已显示出对晚期NET的临床活性。方法:CABINET试验是一项多中心、Ⅲ期临床试验,由美国国家癌症研究所(NCI)资助的联盟(Alliance for Clinical Trials in Oncology)设计和实施。
基金This document is the results of the research projects Digital twins for large-scale heat pumps and refrigeration systems(EUDP 64019-0570)Flexible Energy Denmark(FED)(IFD 8090-00069B).
文摘Aiming to enable robust large-scale fault diagnostics and optimized control for supermarket refrigerationsystems, a data-driven grey box model for an evaporator and its surrounding cooling cabinet (or room) ispresented. It is a non-linear model with two states: the cabinet temperature and the refrigerant mass in theevaporator. To demonstrate its applicability, data with one-minute sampling resolution from ten evaporators ina supermarket in Otterup (Denmark) was used. The model parameters were estimated using a Kalman filter andthe maximum likelihood method. Since the dynamical properties of the cabinets constantly change as goodsare added and removed, the parameters were re-estimated for each night, over a period of approximately 2.5years. The model is validated through a statistical analysis of the residuals and the importance of the ongoingre-estimation of parameters is highlighted. Furthermore, the physical meaning of the estimated parameters isdiscussed and potential applications for characterization and classification of cabinets are demonstrated, byshowing how they can be differentiated as either open- or closed cabinets or rooms, using only the estimatedheat transfer coefficients and heat capacities. For a selected case it is shown that the estimated parametervalues are close to physics derived values, and that the accuracy measured by the standard errors of theestimates is approximately ±10% relative to the estimated values. The analysis demonstrates that the modelis robust, accurate and reliable in terms of estimating physically meaningful parameters and it is thereforeappropriate for large-scale implementation.
基金The National Natural Science Foundation of China(No.71271053)the Scientific Innovation Research of College Graduates in Jiangsu Province(No.CXLX13_082)
文摘Due to the practical problems of the high costs and the long development cycle of China’s cabinet production,a computer-aided design method of the cabinet based on style imagery is proposed.According to the principle of the conjoint analysis method, the rough set theory and the weight coefficient of different components of the cabinet,a multi-dimensional model of style imagery to evaluate the cabinet is built. Then the related constants of style imagery are calculated and the cabinet components library is also built by the three-dimensional modeling.Finally,with recombinant technology and the mapping model between cabinet style and external characteristics,the prototype system based on Visual Studio is proposed.This system actualizes the bidirectional reasoning between product style imagery and the shape features,which can assist designers to produce more creative designs,greatly improve the efficiency of cabinet development and increase the profits of companies.
基金Supported by Tianjin Agricultural University of National Grand Program in 2015(201510061020)~~
文摘Courier services develop fast as e-commerce advances but challenged by the problem of ＂the last kilometer＂. The research analyzed problems of courier ser- vices in universities or colleges with a case study of universities in Tianjin and pro- posed suggestions on intelligent courier services.
基金fundings from the National Natural Science Foundation of China(Nos.51872173,51772176)TaishanScholars Program of Shandong Province(Nos.tsqn201812068,tspd20161006)+6 种基金Higher School Youth Innovation Team of Shandong Province(No.2019KJA013)Key Research and Development Program of Shandong Province(No.2018GGX102028)Science and Technology Special Project of Qingdao City(No.20-3-4-3-nsh)the Opening Fund of State Key Laboratory of Heavy Oil Processing(No.SKLOP202002006)Cooperative Education Project of the Ministry of Education(No.201902195026)Humanities and Social Sciences Program(GoMoruo Studies)of the Education Department of Sichuan Province(No.GY2020C01)Shandong Archives Science and Technology Project(No.2020-33)。
文摘TiO_(2)photocatalysts have been widely studied and applied for removing bacteria,but its antibacterial efficiency is limited to the ultraviolet(UV)range of the solar spectrum.In this work,we use the gold(Au)nanorods to enhance the visible and near-infrared(NIR)light absorption of TiO_(2)NBs,a typical UV light photocatalyst,thus the enhancement of its full solar spectrum(UV,visible and NIR)photocatalytic antibacterial properties is achieved.Preliminary surface plasmon resonance(SPR)enhancement photocatalytic antibacterial mechanism is suggested.On one hand,transverse and longitudinal SPR of Au NRs is beneficial for visible and NIR light utilization.On the other hand,Au NRs combined with TiO_(2)NBs to form the heterostructure,which can improve the photogenerated carrier separation and direct electron transfer increases the hot electron concentration while Au NRs as the electron channel can well restrain charge recombination.finally produces the high yield of radical oxygen species and exhibits a superior antibacterial efficiency.Furthermore,we design a sterilization file cabinet with Au NR/TiO_(2)NB heterostructures as the photocatalytic coating plates.Our study reveals that Au NR/TiO_(2)NB heterostructure is a potential candidate for sterilization of bacteria and archives protection.
文摘In order to understand the vibration characteristic of system structure of electronic equipment cabinet within the particular vibration frequency,the finite element analysis software-ANSYS is used to simulate the tests of random vibrations of the cabinet system and obtain the isopleths graph of deformation and stress of the cabinet.It can confirm maximum of deformation and stress of the cabinet and position happened.Through more analysis of the frequency response curve,which can confirm harm- ful consequences random vibrations caused and weak link of the cabinet structure.The numerical simulation results are in good a- greement with the experimental results.It shows that this research provides an efficient method for the anti-seismic design and the dynamic optimization design.
文摘Base on Prof. Maa Dah-You’s general theory of the microperforated-panel (MPP) absorber, We designed a noise reduction structure-sound attenuating cabinet (SAC). It can be applied to air-cooled communication products to reduce system noise. This article introduces engineering design method of SAC and laboratory test noise reduction results of application of SAC.
基金supported by the CEPRI project“Key Technologies for Sparse Acquisition of Power Equipment State Sensing Data”(AI83-21-004)National Key R&D Program of China(2020YFB0905900).
文摘In this study,a novel non-intrusive temperature rise fault-identification method for a distribution cabinet based on tensor block-matching is proposed.Two-stage data repair is used to reconstruct the temperature-field information to support the demand for temperature rise fault-identification of non-intrusive distribution cabinets.In the coarse-repair stage,this method is based on the outside temperature information of the distribution cabinet,using tensor block-matching technology to search for an appropriate tensor block in the temperature-field tensor dictionary,filling the target space area from the outside to the inside,and realizing the reconstruction of the three-dimensional temperature field inside the distribution cabinet.In the fine-repair stage,tensor super-resolution technology is used to fill the temperature field obtained from coarse repair to realize the smoothing of the temperature-field information inside the distribution cabinet.Non-intrusive temperature rise fault-identification is realized by setting clustering rules and temperature thresholds to compare the location of the heat source with the location of the distribution cabinet components.The simulation results show that the temperature-field reconstruction error is reduced by 82.42%compared with the traditional technology,and the temperature rise fault-identification accuracy is greater than 86%,verifying the feasibility and effectiveness of the temperature-field reconstruction and temperature rise fault-identification.
基金Supported by Tianjin Agricultural University of National Grand Program in 2015(201510061020)~~
文摘With the advent of Internet life in recent years, online shopping has be- come a new way of life, shopping patterns emerge in an endless stream especially for college students. With the increasing of the express delivery, express distribu- tionproblems are becoming more and more serious, ＂the last one hundred meters＂ restricts the long-term development of the campus express. Facing these problems, taking Universities in Tianjin as an example, this paper puts forward the distribution scheme of the intelligent terminal of the ＂postal island＂. The feasibility and necessity of the intelligent express management system are vedfied through analyzing the un- iversities in Tianiin.
文摘After the outbreak of the Russia–Ukraine conflict, Japan wasted no time in advancing its national strategy and actively promoted shuttle diplomacy with the United States(U.S.), Europe, East Asia, and neighboring countries of Ukraine around sanctions against Russia based on strategic considerations and the goal of maximizing national interests. Japan regarded this conflict as an important opportunity for an international strategic game, in an attempt to move and overturn the postwar international order and reconstruct the new global order with the U.S., Europe, and Japan as the core countries dominating the military, science and technology, and economic spheres. In response to the crisis, Japan made a brief policy adjustment—from the initial hesitation to the imposition of active sanctions and pressure on Russia—to reverse the passive situation on the issue of the Four Northern Islands and weaken Russia’s strength. Japan also took the opportunity to promote the “China threat theory”;strengthen the quadrilateral mechanism between the U.S., Japan, India, and Australia;provoke regional confrontation;and try to gain a new Cold War dividend.
文摘Nationalism threatens to imbue modern Japan with a rationale for increased militarism.Post-war nationalism was a reason Japan had launched war abroad,but the reinvigoration of Japanese nationalism is burgeoning under two-term Prime Minister Shinzo Abe.His sense of nationalism,which has domestic and international repercussions,has developed under the influence of his family political genes.Abe's nationalism is being carried out in internal and external policies,with increasingly negative impact on domestic and regional order.The international community should remain vigilant of his right-wing politics.
文摘1698年,一只庋藏了众多医疗俗物及其他东方博物展品的中国橱柜(The China Cabinet)被捐赠予英国皇家学会,汉斯·斯隆在《哲学汇刊》上发表了对此柜的四篇解说。The China Cabinet内存储的“外科”用刀,修甲、采耳、按摩工具为重构明清中国民俗医疗器物史提供了宝贵的一手资料。在《哲学汇刊》大传统指引下,汉斯·斯隆借助“了解”“同情”的活态叙述、细致严谨的图像语言两项叙述技法成功地全景呈现了The China Cabinet所见中国民俗医疗图景。在表达过程中,包容互鉴的文明对话心态起到了基础而积极的效应。
文摘In this paper, workflow technology is firstly applied to the cabinet dyeing order system for cabinet dyeing unit. The system setup workflow models which conform to the existing system and resource and the system adopts flexible workflow process mechanism to enhance the adaptability and opening and solve the exception and abnormality manipulation. The results show that it can not only provide the better dyeing order process, but also set dyer free from the fussy daily business and predigest task flow and heighten production efficiency.
文摘Considering the actual operating experience of the Daode Wind Farm, this paper analyzes the rea-sons for the fault of the lO-kV switch cabinet. Some technical improvements and management measures, such as implementing the anti-accident technical measures, improving the installation and debugging level, and strengthening operation inspection, are proposed.
