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Elastic-plastic study on high building with SRC transferring story 认领 引用 被引量：7
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作者 李玉荣 裘涛 孙炳楠 《Journal of Zhejiang University-SCIENCE A》 EI CAS 2006年第3期407-414,共8页
A new type of transferring structure for steel reinforced concrete (SRC) beams is used in high building. The pushover analysis method was used to study the failure mechanism and ductility of SRC transferring structure... A new type of transferring structure for steel reinforced concrete (SRC) beams is used in high building. The pushover analysis method was used to study the failure mechanism and ductility of SRC transferring structure through consulting pseudo-static test results for the structure. And, the occurrence order and position of the plastic hinge, the weak story and seismic capacity of high building with SRC transferring story were also studied through consulting shaking table test results for the high building, showing that the seismic behavior of high building with SRC transferring story is good. 展开更多
关键词 Steel reinforced concrete （SRC） Transferring structure for SRC beams Static pushover analysis High building Pseudo-static test Shaking table test
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Sap-flow measurement and scale transferring from sample trees to entire forest stand of Populus euphratica in desert riparian forest in extreme arid region 认领 引用 被引量：2
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作者 JianHua Si Qi Feng +3 位作者 HaiYang Xi ZongQiang Chang YongHong Su Kai Zhang 《Research in Cold and Arid Regions》 2009年第3期258-266,共9页
Understanding how the transpiration of this vegetation type responds to environmental stress is important for determining the wa-ter-balance dynamics of the riparian ecosystem threatened by groundwater depletion.Trans... Understanding how the transpiration of this vegetation type responds to environmental stress is important for determining the wa-ter-balance dynamics of the riparian ecosystem threatened by groundwater depletion.Transpiration and sap flow were measured using the heat-pulse technique.The results were then projected up to the stand level to investigate the stand’s water-use in relation to climate forcing in the desert riparian forest in an extreme arid region.This study took place from April through October 2003 and from May through October 2004.The experimental site was selected in the Populus euphratica Forest Reserve(101o10'E,41o59'N)in Ejina county,in the lower Heihe River basin,China.The sapwood area was used as a scalar to extrapolate the stand-water consumption from the whole trees’water consumption measured by the heat-pulse velocity recorder(HPVR).Scale transferring from a series of individual trees to a stand was done according to the existing natural variations between trees under given environmental conditions.The application of the biometric parameters available from individual tree and stand levels was proved suitable for this purpose.A significant correlation between the sapwood area and tree diameter at breast height(DBH)was found.The prediction model is well fitted by the power model.On the basis of the prediction model,the sapwood area can be cal-culated by DBH.The sap-flow density can then be used to extrapolate the stand-water use by means of a series of mathematical models. 展开更多
关键词 sap flow heat-pulse technique sapwood area scale transferring extreme arid region Populus euphratica
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A Method for Transferring an Unknown Quantum State and Its Application 认领 引用 被引量：1
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作者 YAN Feng-Li HUO Hai-Rui 《Communications in Theoretical Physics》 SCIE CAS 2007年第4期629-632,共4页
We suggest a method for transferring an unknown quantum state. In this method the sender Alice first applies a controlled-not operation on the particle in the unknown quantum state and an ancillary particle which she ... We suggest a method for transferring an unknown quantum state. In this method the sender Alice first applies a controlled-not operation on the particle in the unknown quantum state and an ancillary particle which she wants to send to the receiver Bob. Then she sends the ancillary particle to Bob. When Alice is informed by Bob that the ancillary particle is received, she performs a local measurement on her particle and sends Bob the outcome of the local measurement via a classical channel. Depending on the outcome Bob can restore the unknown quantum state, which Alice destroyed, on the ancillary particle successfully. As an application of this method we propose a quantum secure direct communication protocol. By introducing the decoy qubits the security of the scheme is guaranteed. 展开更多
关键词 transferring unknown quantum state secure direct communication controlled-not operation
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Evaluation on Heat Transferring Performance of Fabric Heat Sink by Finite Element Modeling 认领 引用
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作者 杨旭东 张华帅 +2 位作者 胡吉永 路玉环 李毓陵 《Journal of Donghua University(English Edition)》 CAS 2016年第4期619-624,共6页
Considering the limitation in current manufacturing technology of commercial pin fin heat sinks,a new fabric heat sink has been designed. However,it is lack of an understanding of the heat transferring performance of ... Considering the limitation in current manufacturing technology of commercial pin fin heat sinks,a new fabric heat sink has been designed. However,it is lack of an understanding of the heat transferring performance of this new kind of heat sink. In this study,the finite element method (FEM) was used to predict the heat transferring performance of fabric heat sink under the condition of natural convection and forced convection, and its heat transferring performance was compared with that of pin fin heat sink. The results showed that in the condition of natural convection the heat transferring performance of pin fin heat sink was better than that of fabric heat sink, and vice versa under the forced convection condition. 展开更多
关键词 fabric heat sink pin fin heat sink natural convection forced convection heat transferring
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A novel approach for feature extraction from a gamma‑ray energy spectrum based on image descriptor transferring for radionuclide identification 认领 引用 被引量：9
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作者 Hao‑Lin Liu Hai‑Bo Ji +3 位作者 Jiang‑Mei Zhang Cao‑Lin Zhang Jing Lu Xing‑Hua Feng 《Nuclear Science and Techniques》 SCIE EI CAS CSCD 2022年第12期88-104,共17页
This study proposes a novel feature extraction approach for radionuclide identification to increase the precision of identification of the gamma-ray energy spectrum set.For easier utilization of the information contai... This study proposes a novel feature extraction approach for radionuclide identification to increase the precision of identification of the gamma-ray energy spectrum set.For easier utilization of the information contained in the spectra,the vectors of the gamma-ray energy spectra from Euclidean space,which are fingerprints of the different types of radionuclides,were mapped to matrices in the Banach space.Subsequently,to make the spectra in matrix form easier to apply to image-based deep learning frameworks,the matrices of the gamma-ray energy spectra were mapped to images in the RGB color space.A deep convolutional neural network(DCNN)model was constructed and trained on the ImageNet dataset.The mapped gamma-ray energy spectrum images were applied as inputs to the DCNN model,and the corresponding outputs of the convolution layers and fully connected layers were transferred as descriptors of the images to construct a new classification model for radionuclide identification.The transferred image descriptors consist of global and local features,where the activation vectors of fully connected layers are global features,and activations from convolution layers are local features.A series of comparative experiments between the transferred image descriptors,peak information,features extracted by the histogram of the oriented gradients(HOG),and scale-invariant feature transform(SIFT)using both synthetic and measured data were applied to 11 classical classifiers.The results demonstrate that although the gamma-ray energy spectrum images are completely unfamiliar to the DCNN model and have not been used in the pre-training process,the transferred image descriptors achieved good classification results.The global features have strong semantic information,which achieves an average accuracy of 92.76%and 94.86%on the synthetic dataset and measured dataset,respectively.The results of the statistical comparison of features demonstrate that the proposed approach outperforms the peak-searching-based method,HOG,and SIFT on the synthetic and measured datasets. 展开更多
关键词 Radionuclide identification Feature extraction Transfer learning Gamma energy spectrum analysis Image descriptor
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Is it necessary to use the entire root as a donor when transferring contralateral C7 nerve to repair median nerve? 认领 引用 被引量：5
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作者 Kai-ming Gao Jie Lao +1 位作者 Wen-jie Guan Jing-jing Hu 《Neural Regeneration Research》 SCIE CAS CSCD 2018年第1期94-99,共6页
If a partial contralateral C7 nerve is transferred to a recipient injured nerve, results are not satisfactory. However, if an entire contralateral C7 nerve is used to repair two nerves, both recipient nerves show good... If a partial contralateral C7 nerve is transferred to a recipient injured nerve, results are not satisfactory. However, if an entire contralateral C7 nerve is used to repair two nerves, both recipient nerves show good recovery. These findings seem contradictory, as the above two methods use the same donor nerve, only the cutting method of the contralateral C7 nerve is different. To verify whether this can actually result in different repair effects, we divided rats with right total brachial plexus injury into three groups. In the entire root group, the entire contralateral C7 root was transected and transferred to the median nerve of the affected limb. In the posterior division group, only the posterior division of the contralateral C7 root was transected and transferred to the median nerve. In the entire root ＋ posterior division group, the entire contralateral C7 root was transected but only the posterior division was transferred to the median nerve. After neurectomy,the median nerve was repaired on the affected side in the three groups. At 8, 12, and 16 weeks postoperatively, electrophysiological examination showed that maximum amplitude, latency, muscle tetanic contraction force, and muscle fiber cross-sectional area of the flexor digitorum superficialis muscle were significantly better in the entire root and entire root ＋ posterior division groups than in the posterior division group. No significant difference was found between the entire root and entire root ＋ posterior division groups. Counts of myelinated axons in the median nerve were greater in the entire root group than in the entire root ＋ posterior division group, which were greater than the posterior division group. We conclude that for the same recipient nerve, harvesting of the entire contralateral C7 root achieved significantly better recovery than partial harvesting, even if only part of the entire root was used for transfer. This result indicates that the entire root should be used as a donor when transferring contralateral C7 nerve. 展开更多
关键词 nerve regeneration peripheral nerve injury brachial plexus injury avulsion injury contralateral C7 transfer nerve root entire root partial root median nerve ulnar nerve animal experiment neural regeneration
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A scheme for transferring an unknown atomic entangled state via cavity quantum electrodynamics 认领 引用 被引量：2
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作者 吴韬 叶柳 倪致祥 《Chinese Physics B》 CAS 2006年第11期2506-2509,共4页
In this paper, we propose a scheme for transferring an unknown atomic entangled state via cavity quantum electrodynamics （QED）. This scheme, which has a successful probability of 100 percent, does not require Bell-s... In this paper, we propose a scheme for transferring an unknown atomic entangled state via cavity quantum electrodynamics （QED）. This scheme, which has a successful probability of 100 percent, does not require Bell-state measurement and performing any operations to reconstruct an initial state. Meanwhile, the scheme only involves atomfield interaction with a large detuning and does not require the transfer of quantum information between the atoms and cavity. Thus the scheme is insensitive to the cavity field states and cavity decay. This scheme can also be extended to transfer ring an entangled state of n-atom. 展开更多
关键词 transfer cavity QED entangled state quantum teleportation
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Transferring of a Two-Mode Entangled State Between Two Cavities via Cavity QED 认领 引用 被引量：1
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作者 WU Tao NI Zhi-Xiang YE Liu 《Communications in Theoretical Physics》 SCIE CAS 2007年第3期451-453,共3页
We propose a scheme for transferring of a two-mode entanglement of zero- or one-photon entangled states between two cavities via atom-cavity field resonant interaction. In our proposal, in order to transfer the entang... We propose a scheme for transferring of a two-mode entanglement of zero- or one-photon entangled states between two cavities via atom-cavity field resonant interaction. In our proposal, in order to transfer the entangled state, we only need two identical two-level atoms and a two-mode cavity for receiving the teleported state. This scheme does not require Bell-state measurement and performing any transformations to reconstruct the initial state. And the transfer can occur with 100% success probability in a simple manner. And a network for transferring of a two-mode entangled state between cavities is suggested. This scheme can also be extended to transfer N-mode entangled state of cavity. 展开更多
关键词 transfer cavity QED quantum entanglement resonant interaction
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Continuously transferring cold atoms in caesium double magneto-optical trap 认领 引用 被引量：1
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作者 闫树斌 耿涛 +1 位作者 张天才 王军民 《Chinese Physics B》 CAS 2006年第8期1746-1751,共6页
We have established a caesium double magneto-optical trap （MOT） system for cavity-QED experiment, and demonstrated the continuous transfer of cold caesium atoms from the vapour-cell MOT with a pressure of - 1 ×... We have established a caesium double magneto-optical trap （MOT） system for cavity-QED experiment, and demonstrated the continuous transfer of cold caesium atoms from the vapour-cell MOT with a pressure of - 1 × 10^-6 Pa to the ultra-high-vacuum （UHV） MOT with a pressure of - 8 × 10^-8 Pa via a focused continuous-wave transfer laser beam. The effect of frequency detuning as well as the intensity of the transfer beam is systematically investigated, which makes the transverse cooling adequate before the atoms leak out of the vapour-cell MOT to reduce divergence of the cold atomic beam. The typical cold atomic flux got from vapour-cell MOT is - 2 × 10^7 atoms/s. About 5 × 10^6 caesium atoms are recaptured in the UHV MOT. 展开更多
关键词 cold atoms double magneto-optical trap continuous transfer ultra-high-vacuum magneto-optical trap
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Transferring a Multi-atom Entangled State via Adiabatic Passage 认领 引用 被引量：1
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作者 LIN Xiu CHEN Mei-Ying +2 位作者 LIN Xiu-Min LI Hong-Cai YANG Rong 《Communications in Theoretical Physics》 SCIE CAS 2007年第5期816-820,共5页
We present a scheme for transferring atomic entangled states via adiabatic passage.In the scheme,we use photons to achieve efficient quantum transmission among spatially distant atoms.The probability of the successful... We present a scheme for transferring atomic entangled states via adiabatic passage.In the scheme,we use photons to achieve efficient quantum transmission among spatially distant atoms.The probability of the successful transferring quantum state approaches 1.Meanwhile,the scheme is robust against the effects of atomic spontaneous emission. 展开更多
关键词 quantum state transfer atomic entangled state cavity QED
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Research of Supply Chain Competitive Advantage on Price Transferring Mechanism 认领 引用 被引量：1
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作者 Jiye Ma Zhongyi Zhang 《China-USA Business Review》 2005年第3期33-38,共6页
Issues of cause of supply chain competitive advantage(SCCA)are the basis for further research works in SCCA.This paper intends tO bring new sight to the above question.Starting from the main partner classification and... Issues of cause of supply chain competitive advantage(SCCA)are the basis for further research works in SCCA.This paper intends tO bring new sight to the above question.Starting from the main partner classification and the structure relationship analyzing among partners,this paper demonstrates the price transferring mechanism existing between direct connected partners in the horizontal structure according to price-volume-profit method in finance management.After all these,based on the competitive advantage explanation provided by the RBV(Resource-based View)theory,this paper presents the formula of panner competitive advantage contribution and formula of SCCA.Through the comparison of these formulas,this paper puts forward that the SCCA is actually composed of partner's competitive advantage contribution,but it is not the simply parallel summation of all partner's competitive.advantage contribution,it is rather the transferring of partner's competitive advantage contribution one after another along the horizontal structure,finally being accumulated in the last horizontal partners that creates the SCCA.This idea might be more powerful in coming research of SCCA. 展开更多
关键词 price transferring partner supply chain competitive advantage
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Three-Dimensional Quantum State Transferring Between Two Remote Atoms by Adiabatic Passage under Dissipation 认领 引用
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作者 陈菊梅 梁林梅 +1 位作者 李承祖 邓志姣 《Communications in Theoretical Physics》 SCIE CAS 2010年第7期107-111,共5页
Recently, Zhou et al. [Phys. Rev. A 79 （2009） 044304] proposed a scheme for transferring three-dimensional quantum states between remote atomic qubits confined in cavities connected by fibers through adiabatic passa... Recently, Zhou et al. [Phys. Rev. A 79 （2009） 044304] proposed a scheme for transferring three-dimensional quantum states between remote atomic qubits confined in cavities connected by fibers through adiabatic passage. In order to avoid the decoherence due to spontaneous emission, Zhou et al. utilized the large detuning atom-field interaction. In the present paper, we discuss the influence of dissipation on the scheme in both the resonant atom-field interaction case and the large detuning case. We numerically analyze the success probability and the transferring fidelity. It is shown that the resonant case is a preferable choice for the technique of the stimulated Raman adiabatic passage （STIRAP） due to the shorter operation time and the smaller probability of dissipation. 展开更多
关键词 quantum state transfer adiabatic passage the stimulated Raman adiabatic passage
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Transferring Multi-Dimensional Quantum States and Preparing Quantum Networks in Cavity QED 认领 引用
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作者 陈子翃 郑小兰 廖长庚 《Communications in Theoretical Physics》 SCIE CAS 2010年第9期452-456,共5页
In this paper we propose a scheme for transferring quantum states and preparing quantum networks. Compared with the previous schemes, this scheme is more efficient, since three or four-dimensional quantum states can b... In this paper we propose a scheme for transferring quantum states and preparing quantum networks. Compared with the previous schemes, this scheme is more efficient, since three or four-dimensional quantum states can be transferred with a single step and information interchange of three-dimensional quantum states can be realized, which is a significant improvement. It is based on the resonant interaction of a three-mode cavity field with an atom. As a consequence, the interaction time is shortened greatly. Furthermore, we give some discussions about the feasibility of the scheme. 展开更多
关键词 multi-dimensional quantum states transfer quantum networks cavity QED
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Transferring superior gluteal nerve to pudendal nerve in reconstructing functional impairment in simple conus medullaris or pudendal nerve injury 认领 引用
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作者 党瑞山 刘芳 +5 位作者 张少成 李玉泉 黄会龙 陈尔瑜 许家军 张传森 《Journal of Medical Colleges of PLA(China)》 2003年第6期337-340,共4页
Objective: 1Department of Anatomy, College of Basic Medical Sciences, Second Military Medical University, Shanghai 200433, China 2Department of Orthopedic Surgery, Changhai Hospital, Second Military Medical University... Objective: 1Department of Anatomy, College of Basic Medical Sciences, Second Military Medical University, Shanghai 200433, China 2Department of Orthopedic Surgery, Changhai Hospital, Second Military Medical University, Shanghai 200433, China Abstract Objective: To study the anatomical basis of transferring the superior gluteal nerve to the pudendal nerve in reconstructing the functional impairment in simple conus medullaris or pudendal nerve injury. Methods: Superior gluteal nerve and pudendal nerve were observed and measured by the gross and microsurgical anatomical methods in 62 sides of 31 adult cadavers. Results: Superior gluteal nerve came out of the superior foreman of piriformis as 1 to 4 branches(29.03%,56.45%,12.90% and 1.61% respectively) and the pelvic-leaving points were mainly in the middle 1/3(85.48%) of the line from the posterior superior iliac spine to the ischial tuberosity. The length of the inferior branch of the superior gluteal nerve was more than 5 cm, and the distance between the pelvic-leaving points of the superior gluteal nerve and pudandal nerve was about 4 cm only. The pudendal nerve left the pelvis mainly in the middle 1/3(48.39%) of the line from the posterior superior iliac spine to the ischial tuberosity,or at the junction of its inferior-middle 1/3(46.77%). In clinic, we have successfully made the operation transferring the superior gluteal nerve to the pudendal nerve in 3 patients suffered from the injury of conus medullaris. Conclusion: Distance between the pelvic-leaving points of the superior gluteal nerve and the pudendal nerve is close, so the inferior branch of the gluteal nerve can be anastomosed with the pudendal nerve directly. Transferring the superior gluteal nerve with higher spinal segemental origin to the pudendal nerve of a lower spinal segemental origin is practical and easy. 展开更多
关键词 superior gluteal nerve pudendal nerve nerve transfer functional reconstruction
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Transferring an N-atom state between two distant cavities via an optical fiber 认领 引用
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作者 马宋设 陈美锋 《Chinese Physics B》 SCIE EI CAS 2009年第8期3247-3250,共4页
This paper proposes a scheme for transferring an N-atom state between two distant cavities via an optical fiber. The scheme is based on adiabatic passage along a dark state. In the scheme, all the atoms are always in ... This paper proposes a scheme for transferring an N-atom state between two distant cavities via an optical fiber. The scheme is based on adiabatic passage along a dark state. In the scheme, all the atoms are always in ground state, the field mode of the fiber remains in vacuum state, and the field mode of the cavities being excited can be negligible under certain conditions. Therefore, the scheme is very robust against decoherence. The successful probability of implementing the quantum state transfer increases with increasing number of atoms. Furthermore, the interaction time does not need to be accurately adjusted as long as the adiabaticity condition is fulfilled. 展开更多
关键词 quantum state transfer atom state optical fiber
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Anatomical peculiarities of sensory tracts of the wrist median nerve pedicled with nutrient vessels transferring to bridge wrist ulnar nerve defect 认领 引用
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作者 Sixin Ouyang Zhenshan Peng Jianguo Tan Tianhong Peng Jianzhong Xiao 《Neural Regeneration Research》 CAS 2006年第1期47-49,共3页
BACKGROUND： Translocation or transplantation of nerve stem has good effect; however, nervous function of donator is completely lost. If some nerve stem is damaged, sensory tracts are intercepted from the near nerve s... BACKGROUND： Translocation or transplantation of nerve stem has good effect; however, nervous function of donator is completely lost. If some nerve stem is damaged, sensory tracts are intercepted from the near nerve stem by nutrient vessels to regard as neural graft for transferring and bridging which may repair injured nerve and decrease neural functional loss of donator. OBJECTIVE： To observe anatomical peculiarities on sensory tracts of wrist median nerve pedicled with nutrient vessels transferring to bridge wrist ulnar nerve defect, and to investigate its feasibility. DESIGN：Duplicated and measured design.SETTING ： Anatomy Department of Medical College affiliated to Nanhua University.MATERIALS： A total of 14 samples of upper limbs were selected from adult unnamed corpse and volunteers.METHODS： The experiment was completed at the Clinical Application Anatomy Laboratory of Medical College affiliated to Nanhua University from September to November 2005. Samples were perfused with red emulsion through artery to observe length, fibrous bands and blood supply of median nerve and ulnar nerve at wrist. Boundary of median nerve at wrist ranged from superficial site between flexor carpi radialis and palmaris Iongus to branch of common palmar digital nerves. Ulnar nerve at wrist ranged from branch of back of the hand to site of common palmar digital nerves. Proximal boundary of the two nerves was crossed from 1/8 to 2/8 region of forearm. Samples of upper limbs from 1 case were selected to simulate operation on sensory tracts of wrist median nerve pedicled with nutrient vessels transferring to bridge wrist ulnar nerve. MAIN OUTCOME MEASURES： Anatomical peculiarities on sensory tracts of wrist median nerve pedicled with nutrient vessels transferring to bridge wrist ulnar nerve defect. RESULTS： ① The length of wrist median nerves was 7.8 （7.5-8.1） cm. There were 19 to 27 nerve tracts in it and the majority belonged to sensory tracts on the ulnar side, in which non-damaged separated length was about 10.0 cm to 14.0 cm. The third, second and first tracts of cutaneous branches at digital interspace and radialis of thumb arrayed from ulnaris to radialis by turns, and numbers of bands were 6.9, 7.4 and 7.2, respectively. The bands in total were 21.6. Cutaneous branches of palm entered from lateral margin of radialis and were completely separated at wrist. Two-thirds of ulnaris at nerve stem, i.e. the third, second and first tracts of cutaneous branches at digital interspace, were separated, which had little effect on sensation in distribution of median nerve. ② Its nutrient vessels originated from radial arteries about 6.2 （6.1-6.6） cm above radial styloid process were 1.2 （1.1-1.4） mm in outer diameter. The length was 5.7 （5.1-6.1） cm.③ The length of wrist ulnar nerve were 9.4 （8.9-9.7） cm and the number of nervous tract were 14 to 19, in which sensory tracts on the anterior external side were approximately equal to motor and mixed tracts on the posterior internal side in quantity. Sensory tracts were located at radialis of palm and motor tracts were located at ulnaris of back. CONCLUSION ：① Character and position of median nerve fibre bundle are clear, and length of non-damage separation of sensory tracts is coincidence with the request of transferring to bridge. ② Summation of the third, second and first tracts of cutaneous branches at digital interspace may be satisfactory to bridge of ulnar nerve at wrist （14-19 bands）. ③ This technique has little effect on sensation in distribution of median nerve. Nutrient artery of median nerve locates constantly; journey table is superficial and is easily to find out; caliber of arterial canal is thick; blood supply is plentiful; length of pedicel is suitable for translocation. The sensery tracts of wrist median nerve pedicled with nutrient vessels can be applied as nervous grafts to join injured gap in wrist ulnar nerve. 展开更多
关键词 length Anatomical peculiarities of sensory tracts of the wrist median nerve pedicled with nutrient vessels transferring to bridge wrist ulnar nerve defect
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Research on customer knowledge transferring mode and mechanism in internet-based new product development 认领 引用
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作者 FANG Lan 《Chinese Business Review》 2008年第9期28-31,共4页
With the development of internet technology, customers play more and more important roles in new product development. The paper defines customer knowledge; then analyses the modes of customer knowledge transferring ba... With the development of internet technology, customers play more and more important roles in new product development. The paper defines customer knowledge; then analyses the modes of customer knowledge transferring based on SECI model and information emission model. Finally customer knowledge transferring mechanism is discussed. 展开更多
关键词 customer knowledge knowledge transferring internet-based product development
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Intelligent Power Grid Load Transferring Based on Safe Action-Correction Reinforcement Learning 认领 引用 被引量：2
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作者 Fuju Zhou Li Li +3 位作者 Tengfei Jia Yongchang Yin Aixiang Shi Shengrong Xu 《Energy Engineering》 EI 2024年第6期1697-1711,共15页
When a line failure occurs in a power grid, a load transfer is implemented to reconfigure the network by changingthe states of tie-switches and load demands. Computation speed is one of the major performance indicator... When a line failure occurs in a power grid, a load transfer is implemented to reconfigure the network by changingthe states of tie-switches and load demands. Computation speed is one of the major performance indicators inpower grid load transfer, as a fast load transfer model can greatly reduce the economic loss of post-fault powergrids. In this study, a reinforcement learning method is developed based on a deep deterministic policy gradient.The tedious training process of the reinforcement learning model can be conducted offline, so the model showssatisfactory performance in real-time operation, indicating that it is suitable for fast load transfer. Consideringthat the reinforcement learning model performs poorly in satisfying safety constraints, a safe action-correctionframework is proposed to modify the learning model. In the framework, the action of load shedding is correctedaccording to sensitivity analysis results under a small discrete increment so as to match the constraints of line flowlimits. The results of case studies indicate that the proposed method is practical for fast and safe power grid loadtransfer. 展开更多
关键词 Load transfer reinforcement learning electrical power grid safety constraints
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An Alternative Scheme for Transferring Quantum States and Preparing a Quantum Network in Cavity QED 认领 引用 被引量：3
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作者 YANG Zhen-Biao SU Wan-Jun 《Communications in Theoretical Physics》 SCIE CAS 2007年第6期1037-1040,共4页
An alternative scheme is proposed to transfer quantum states and prepare a quantum network in cavity QED.It is based on the interaction of a two-mode cavity field with a three-level V-type atom.In the scheme,the atom-... An alternative scheme is proposed to transfer quantum states and prepare a quantum network in cavity QED.It is based on the interaction of a two-mode cavity field with a three-level V-type atom.In the scheme,the atom-cavity field interaction is resonant,thus the time required to complete the quantum state transfer process is greatly shortened,which is very important in view of decoherence.Moreover,the present scheme does not require one mode of the cavities to be initially prepared in one-photon state,thus it is more experimentally feasible than the previous ones. 展开更多
关键词 quantum states transfer quantum network cavity QED
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Research on Corrosion of Oil and Gas Gathering and Transferring Pipelines and Measures for Anti-corrosion 认领 引用
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作者 XIA Qifei 《外文科技期刊数据库（文摘版）工程技术》 2020年第1期095-097,共3页
Corrosion is caused to oil and gas gathering and transferring pipelines due to corrosivity of oil and gas during transferring as well as influences on pipelines caused by soils and atmospheres, leading to accidents su... Corrosion is caused to oil and gas gathering and transferring pipelines due to corrosivity of oil and gas during transferring as well as influences on pipelines caused by soils and atmospheres, leading to accidents such as leakage or fire disasters of pipelines during transferring. Therefore, a series of analysis and discussion on corrosion of oil and gas gathering and transferring pipelines and measures adopted for anti-corrosion are conducted in the article. Firstly, it explains the factors that lead to corrosion of oil and gas gathering and transferring pipelines;it then elaborates the measures adopted for anti-corrosion of oil and gas gathering and transferring pipelines. 展开更多
关键词 oil and gas gathering and transferring pipelines corrosion anti-corrosion
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