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Hyperspectral Imaging for cherry tomato
[article]
2022
arXiv
pre-print
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Zhou et al. (2020) use it to classify the maize seeds. Fan et al. (2015) use it to predict SSC and firmness in pears. ...
arXiv:2203.05199v1
fatcat:uomp3cxht5fpvjzdpnzvoin5ue
EFFECT OF PULSE DURATION ON THE PROPERTIES OF LASER-WELDED GLASS JOINTS
2022
Materiali in Tehnologije
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ZHOU et al.: EFFECT OF PULSE DURATION ON THE PROPERTIES OF LASER-WELDED GLASS JOINTS I is the pulse current. t is the pulse duration. The photoelectric conversion rate of the laser is 3 %. ...
ZHOU et al.: EFFECT OF PULSE DURATION ON THE PROPERTIES OF LASER-WELDED GLASS JOINTS 30 Materiali in tehnologije / Materials and technology 56 (2022) 1, 27-32
Figure 2 : 2 Figure 2: Distribution of pores ...
doi:10.17222/mit.2021.217
fatcat:xfwtqw4b5bgvxkuiaw7f4sodzi
Batch Group Normalization
[article]
2020
arXiv
pre-print
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and Yang 2019; Zhou et al. 2019; Zhou 2019), and scene text detection
Figure 2 : 2 Cell-based architectures. ...
covariance pooling networks (Li et al. 2018a), multitask learning (Chen et al. 2018; Deecke, Murray, and Bilen 2019), UDA (Chang et al. 2019), semantic image synthesis (Park et al. 2019), medical area (Zhou ...
arXiv:2012.02782v2
fatcat:anuqp4fo45bnnf47vql7n4qpce
Research on Technological Innovation of Super High-rise Buildings
2022
Highlights in Science Engineering and Technology
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As China enters a new era of socialism, the economy is developing at a high speed, and the urban population density is increasing rapidly. The development of cities is facing the problem of land shortage. Therefore, the development of super high-rise buildings has become an inevitable means of urban development and construction. However, the construction of super high-rise buildings is difficult and complicated, and there are many factors need to be considered. If the construction technology,
doi:10.54097/hset.v28i.4100
fatcat:aa6kmyidzbgupldkx2xejhloym
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... ructural design method and materials adopted in the construction process are too old or inappropriate, it will cause unnecessary economic losses and even potential safety hazards. Therefore, it is urgent to summarize and find more novel and appropriate construction methods for super high-rise buildings in China. In this paper. the literature method is used to discuss and explore the structural design, material selection and construction technology of super high-rise buildings. The results summarized can provide references for designers and engineers.
Relaxed Conditional Image Transfer for Semi-supervised Domain Adaptation
[article]
2021
arXiv
pre-print
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The work is done when Qijun Luo and Zhili Liu are interns in Huawei Noah's Ark Lab. † Corresponding authors: C. Li, email: chongxuanli1991@gmail.com, and J. Zhu, email: dcszj@mail.tsinghua.edu.cn. ...
arXiv:2101.01400v1
fatcat:n6gozweojrfepaetozqfc5bpia
Influence of donor–recipient sex mismatch on long-term survival of pancreatic grafts
2016
Scientific Reports
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To assess the role of sex mismatch on graft survival after pancreas transplantation. We evaluated 24,195 pancreas-transplant recipients reported in the Scientific Registry of Transplant Recipients over a 25-year period. Pancreatic graft survival (PGS) was analyzed according to donor-recipient sex pairing using Kaplan-Meier estimations. Hazard ratios were estimated using Cox proportional hazard models. A total of 14,187 male and 10,008 female recipients were included in final analyses. Mean
doi:10.1038/srep29298
pmid:27403718
pmcid:PMC4941418
fatcat:zyhv52qzwzb2pidmwgbxovlpm4
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... w-up was 8.3 ± 5.7 years. In multivariate analyses, neither recipient sex nor donor sex was associated with pancreatic graft failure (PGF), but donor-recipient sex mismatch (regardless of recipient sex) was an independent predictor of PGS (HR, 1.09; 95% CI, 1.04-1.14; p < 0.001). Compared with M → M sexmatched recipients in univariate analyses, M → F and F → M sex mismatches were associated with an increased risk of PGF. Adjustment for significant recipient and donor factors eliminated the association between F → M sex mismatch and PGF (HR, 1.02; 95% CI, 0.93-1.10; p = 0.752), but not M → F (1.09; 1.02-1.17; 0.020). Stratified analyses suggested that the negative effect of donor-recipient sex mismatch could be neutralized in older patients. These findings suggest that donor-recipient sex pairing should be taken into consideration in organ-allocation strategies. Sex plays an important part in the outcomes of individuals receiving solid-organ transplants 1-5 . In liver-transplant recipients, female recipients and donors have been found to be associated with an increased prevalence of death and graft failure 4 . More recent studies have highlighted the importance of donor-recipient sex pairing in organ transplantation. Several reports on liver transplantation have shown that recipients with sex-mismatched donors have an increased risk of graft failure compared with those with sex-matched donors 6-9 . In heart-transplant recipients, donor-recipient sex mismatch also increases the risk of death (mainly during the first month) and in patients with pulmonary gradient >13 mmHg 10 . Kaufman and colleagues found that female donors were associated with graft loss after pancreas transplantation, and that donor sex was integrated into the formula for the Pancreas Donor Risk Index (PDRI) 11 . A study from Norway confirmed recipient sex not to be associated with pancreatic graft survival (PGS) or patient survival 12 . However, all of these reports looked only at the impact of donor sex or recipient sex. Also, the results of studies analyzing the influence of associations between donor sex and recipient sex on PGS in small-sample cohorts or in single-center studies have been contradictory [13] [14] [15] [16] [17] . We hypothesized that the types of donor-recipient sex matching are relevant in predicting outcomes of pancreatic grafts. Accordingly, using a large national registry database, we sought to clarify and quantify the influence of donor-recipient sex pairing on the outcomes of pancreas transplantation.
A Novel Field-Free SOT Magnetic Tunnel Junction With Local VCMA-Induced Switching
[article]
2023
arXiv
pre-print
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By integrating the local voltage-controlled magnetic anisotropy (VCMA) effect, Dzyaloshinskii-Moriya interaction (DMI) effect, and spin-orbit torque (SOT) effect, we propose a novel device structure for field-free magnetic tunnel junction (MTJ). Micromagnetic simulation shows that the device utilizes the chiral symmetry breaking caused by the DMI effect to induce a non-collinear spin texture under the influence of SOT current. This, combined with the perpendicular magnetic anisotropy (PMA)
arXiv:2312.15481v1
fatcat:xam2fa5x7bf5dkc7qeyqglxoyq
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... ent generated by the local VCMA effect, enables deterministic switching of the MTJ state without an external field. The impact of variations in DMI strength and PMA gradient on the magnetization dynamics is analyzed.
Application of Electromagnetic Focusing Electron Gun In YAG Projection CRT
1999
ITE Technical Report
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An electromagnetic focusing electron gun was used in high-tuminance and high-definitjon YAG (yttrium aluminum garnet) projection CRT successfu11y. The dual-focusing system in it was developed, which was composed ofelectrostatic pre-fbcusing lens and electromagnetic focusing lens. Result from the specia] optimization of structure and voltage, the cLectron gun has excellent characteristics especially wit high current. As a result, on the green YAG phosphor screen, beam spot diamcters of
doi:10.11485/itetr.23.26.0_125
fatcat:ukddehqusvempcnnwmjvwpgc4a
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... 80mm at cathode eurrents of O.5-1,OmA. So the horizontal resolution was more than 1200 TV-lines on the 3-in prQjection CR'I' screen. Meanwhile, the luminance of 1.4X 1OScdlm2 at cathode current of 1.0mA and anode voltage of29kv was achieved.
Singular Configuration Analysis and Singularity Avoidance with Application in an Intelligent Robotic Manipulator
2022
Sensors
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Recently, robotic sensor systems have gained more attention annually in complex system sense strategies. The robotic sensors sense the information from itself and the environment, and fuse information for the use of perception, decision, planning, and control. As an important supplement to traditional industrial robots, co-bots (short for co-working robots) play an increasingly vital role in helping small and medium-sized enterprises realize intelligent manufacturing. They have high flexibility
doi:10.3390/s22031239
pmid:35161983
pmcid:PMC8838707
fatcat:4iv2ignwkrah5m5p2zuzm6ugf4
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... and safety so that they can assist humans to complete highly repetitive and high-precision work. In order to maintain robot safe operation in the increasing complex working environment and human–computer intelligent interactive control, this paper is concerned with the problem of applicant accuracy analysis and singularity avoidance for co-bots. Based on the dynamic model with load and torque sensors, which is used to detect the external force at the end of the robot, this paper systematically analyzes the causes of singularity phenomenon in the robot motion control. The inverse solution is obtained by analytical method and numerical method, respectively. In order to ensure the smooth and safe operation in the whole workspace, it is necessary for a robot to avoid singularity. Singularity avoidance schemes are utilized for different control tasks, including point-to-point control and continuous path control. Corresponding simulation experiments are designed to verify the effectiveness of different evasion schemes, in which the advantages and disadvantages are compared and analyzed.
Temperature Field Simulation Analysis of Bleeder Resistance Module
2019
IOP Conference Series: Earth and Environment
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Based on the finite volume method, the Ansys thermal simulation module Icepak is used to simulate the temperature field of the bleeder resistance module in the large resistance cabinet. The temperature distribution of the resistance module during normal operation is obtained. And from the temperature distribution, the working status of the resistance module can be assessed. Based on the thermal analysis, the temperature distribution cloud map of the resistance module under normal operation is
doi:10.1088/1755-1315/242/2/022037
fatcat:talnzg2dazcejmtbgjeg7z6mce
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... tained; which provides suggestions for optimization of the internal cooling system of the resistance cabinet.
Capsid modification of adeno-associated virus and tumor targeting gene therapy
2008
Science Bulletin
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Targeting is critical for successful tumor gene therapy. The adeno-associated virus (AAV) has aroused wide concern due to its excellent advantages over other viral vectors in gene therapy. AAV has a broad infection spectrum, which also results in poor specificity towards tissues or cells and low transduction efficiency. Therefore, it is imperative to improve target and transduction efficiency in AAV-mediated gene therapy. Up to now, researchers have developed many strategies to modify AAV
doi:10.1007/s11434-008-0487-y
fatcat:zehpohdxhfdjtpvingsrux34yq
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... s for improving targeting or retargeting only desired cells. These strategies include not only traditional chemical modification, phage display technology, modification of AAV capsid genome, chimeric vectors and so on, but also many novel strategies involved in marker rescue strategy, direct evolution of capsid proteins, direct display random peptides on AAV capsid, AAVP (AAV-Phage), and etc. This review will summarize the advances of researches on the capsid modification of AAV to target malignant cells. rAAV, target therapy, gene therapy
Distribution characteristics of serum β2-microglobulin between viral and bacterial lower respiratory tract infections: a retrospective study
2020
PeerJ
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Qijun Yong performed the experiments, authored or reviewed drafts of the paper, and approved the final draft. ...
Chenrong Zhou analyzed the data, authored or reviewed drafts of the paper, and approved the final draft. ...
doi:10.7717/peerj.9814
pmid:32904447
pmcid:PMC7453919
fatcat:obbthx7g6relfon4fzepvwtx4a
MicroRNA‑126: A new and promising player in lung cancer (Review)
2020
Oncology Letters
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Lung cancer is one of the most common malignant tumors associated with cancer death; however, the mechanisms involved in lung tumor development have not been completely elucidated, which impedes the advancement of clinical diagnosis and therapy. MicroRNA-126 (miR-126) is an important member of the microRNA family and is encoded by intron 7 of epidermal growth factor-like domain-containing gene 7. Increasing evidence has demonstrated that miR-126, as a distinct endothelial-enriched miRNA and new
doi:10.3892/ol.2020.12296
pmid:33262827
pmcid:PMC7693477
fatcat:natghqoj3rc6rpsuds4depkyri
more »
... tumor suppressor gene, serves a promising role in the occurrence, development and metastasis of various types of cancer, including liver cancer, colorectal cancer, melanoma and lung cancer. In the present review, the current knowledge of the role of miR-126 in lung cancer growth, metastasis, diagnosis and prognosis as well as therapy was summarized, which may provide new insights on the biological roles of miRNAsin lung cancer and facilitate the ultimate development of miRNA-based therapies in clinical patients with non-small cell lung cancer.
A Novel Microgrid Islanding Detection Algorithm Based on a Multi-Feature Improved LSTM
2022
Energies
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Islanding detection is one of the conditions necessary for the safe operation of the microgrid. The detection technology should provide the ability to differentiate islanded operations from power grid disturbances effectively. Given that it is difficult to set the fault threshold using the passive detection method, and because the traditional active detection method affects the output power quality, a microgrid islanding detection method based on the Sliding Window Discrete Fourier Transform
doi:10.3390/en15082810
fatcat:qs5vdcym5vf3fmu7xwn2qb5piq
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... FT)-Empirical Mode Decomposition (EMD) and Long Short-Term Memory (LSTM) network optimized by an attention mechanism is proposed. In this paper, the inverter output current and voltage at the point of common coupling (PCC) are transformed by the SDFT. The positive sequence, zero sequence, and negative sequence components of voltage and current harmonics are calculated and reconstructed by adopting the symmetrical component method (SCM). Meanwhile, the current and voltage are decomposed into a mono intrinsic mode function (IMF). The symmetric components of voltage, current, and IMFs are used as inputs to the deep learning algorithm. An LSTM with the features extracted to classify islanding and grid disturbance is proposed. By using the attention mechanism to set the weight values of the features of hidden states obtained by the LSTM network, the proportion of important features increases, which improves the classification effect. MATLAB/Simulink simulation results indicate that the proposed method can effectively classify the islanding state under different working conditions with an accuracy level of 98.4% and a loss value of 0.0725 with a maximal detection time of 66.94 ms. It can also reduce the non-detection zone (NDZ) and detection time and has a certain level of noise resistance. Meanwhile, the problem whereby the active method affects the microgrid power quality is avoided without disturbing the current or power of the microgrid.
Impact of multiple liver resections prior to salvage liver transplantation on survival in patients with recurrent HCC
2015
BMJ Open
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Objectives: Salvage liver transplantation (SLT) is a controversial technique that has been reported to be acceptable for the management of patients with recurrent hepatocellular carcinoma (HCC) after primary hepatic resection (HR). However, whether the number of times liver resection is performed has an impact on survival after SLT has not yet been reported. Design: Retrospective study. Setting: The level of care is primary and the study was carried out at only 1 centre. Participants: The study
doi:10.1136/bmjopen-2015-008429
pmid:26353871
pmcid:PMC4567684
fatcat:i3475uzer5godld2l5evnt5qji
more »
... included 59 patients who underwent SLT for HCC from September 2001 to December 2012. 51 patients underwent HR only once before SLT, while the remaining 8 patients underwent HR more than once before SLT (HR=2 [7], HR=3, [1]). Primary and secondary outcome measures: In this study, the 1-year, 3-year and 5-year overall and tumour-free survival outcomes between the 2 groups were compared. Results: There were no significant differences between patients who underwent HR once and those who underwent HR more than once with respect to overall or tumour-free survival after receiving SLT. The 1-year, 3-year and 5-year overall survival rates for patients who underwent HR once were 72.9%, 35.3% and 35.5% vs 50%, 50% and 50%, respectively ( p=0.986), while the 1-year, 3-year and 5-year tumourfree survival rates for those who underwent HR more than once were 66.3%, 55.3% and 44.4% vs 40%, 40% and 40%, respectively ( p=0.790). Conclusions: There was no significant difference in the survival rate of patients who underwent HR once before SLT and those who underwent HR more than once. This suggests that SLT is a reasonable choice for patients who suffer from recurrent HCC after HR. Trial registration number: This is a retrospective study and no registry or number is required. Hu Z, et al. BMJ Open 2015;5:e008429.
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