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Laser-Assisted Mist Capillary Self-Alignment

Bo Chang, Zhaofei Zhu, Mikko Koverola, Quan Zhou
2017 Micromachines  
This paper reports a method combining laser die transfer and mist capillary self-alignment. The laser die transfer technique is employed to feed selected microchips from a thermal release tape onto a receiving substrate and mist capillary self-alignment is applied to align the microchips to the predefined receptor sites on the substrate in high-accuracy. The parameters for a low-power laser die transfer process have been investigated and experimentally optimized. The acting forces during the
more » ... t-induced capillary self-alignment process have been analyzed and the critical volume enabling capillary self-alignment has been estimated theoretically and experimentally. We have demonstrated that microchips can be transferred onto receptor sites in 300-400 ms using a low-power laser (100 mW), and chips can self-align to the corresponding receptor sites in parallel with alignment accuracy of 1.4 ± 0.8 µm. The proposed technique has great potential in high-throughput and high-accuracy assembly of micro devices. This paper is extended from an early conference paper (MARSS 2017).
doi:10.3390/mi8120361 pmid:30400551 pmcid:PMC6187930 fatcat:fjmz3lcp3rh27nvppkiklzq4e4

Relative distance matters for one-shot landmark detection [article]

Qingsong Yao and Jianji Wang and Yihua Sun and Quan Quan and Heqin Zhu and S. Kevin Zhou
2022 arXiv   pre-print
Contrastive learning based methods such as cascade comparing to detect (CC2D) have shown great potential for one-shot medical landmark detection. However, the important cue of relative distance between landmarks is ignored in CC2D. In this paper, we upgrade CC2D to version II by incorporating a simple-yet-effective relative distance bias in the training stage, which is theoretically proved to encourage the encoder to project the relatively distant landmarks to the embeddings with low
more » ... s. As consequence, CC2Dv2 is less possible to detect a wrong point far from the correct landmark. Furthermore, we present an open-source, landmark-labeled dataset for the measurement of biomechanical parameters of the lower extremity to alleviate the burden of orthopedic surgeons. The effectiveness of CC2Dv2 is evaluated on the public dataset from the ISBI 2015 Grand-Challenge of cephalometric radiographs and our new dataset, which greatly outperforms the state-of-the-art one-shot landmark detection approaches.
arXiv:2203.01687v2 fatcat:eqsyyzep5jc2fi3sjyk7wwwe7m

ODE Transformer: An Ordinary Differential Equation-Inspired Model for Sequence Generation [article]

Bei Li, Quan Du, Tao Zhou, Yi Jing, Shuhan Zhou, Xin Zeng, Tong Xiao, JingBo Zhu, Xuebo Liu, Min Zhang
2022 arXiv   pre-print
Related Work Deep Transformer models Recently, deep Transformer has witnessed tremendous success in machine translation, especially on WMT news tasks Zhou et al., 2021; Tran et al., 2021) .  ...  We can see that RK2-block (learnable γ i ) equips with a single sigmoid gate (line 5 in (Zhou et al., 2018) 41.59 19.01 37.98 PGNet (See et al., 2017) 39.53 17.28 36.38 Soft Fusion (Liu et al., 2020b  ... 
arXiv:2203.09176v1 fatcat:h272ixys2rekvmebnydvnhvrk4

Rapid Processing of a Global Feature in the ON Visual Pathways of Behaving Monkeys

Jun Huang, Yan Yang, Ke Zhou, Xudong Zhao, Quan Zhou, Hong Zhu, Yingshan Yang, Chunming Zhang, Yifeng Zhou, Wu Zhou
2017 Frontiers in Neuroscience  
Eye movements were monitored by a magnetic search coil technique (Robinson, 1963; Judge et al., 1980; Zhou and King, 1998) .  ...  evidence for the global-to-local approach, including configural superiority (Weisstein and Harris, 1974; Navon, 1977) , early detection of topological properties (Chen, 1982 (Chen, , 1990 Chen and Zhou  ... 
doi:10.3389/fnins.2017.00474 pmid:28890683 pmcid:PMC5575892 fatcat:23vt4ytgpbhbhlqtaeokxxlqgy

First report of Cryptosporidium spp. in white yaks in China

Si-Yuan Qin, Xiao-Xuan Zhang, Guang-Hui Zhao, Dong-Hui Zhou, Ming-Yang Yin, Quan Zhao, Xing-Quan Zhu
2014 Parasites & Vectors  
Cryptosporidium is an enteric apicomplexan parasite, which can infect yaks, leading to reduction of milk production and poor weight gain. White yak (Bos grunniens) is a unique yak breed inhabiting only in Tianzhu Tibetan Autonomous County, Gansu province, northwestern China. The objective of the present study was to molecularly determine Cryptosporidium infection and species in white yaks. Findings: Seventy-six fecal samples from white yaks in Tianzhu Tibetan Autonomous County, Gansu province
more » ... re collected. The small subunit ribosomal RNA (SSU rRNA) gene of each sample was amplified using nested PCR and sequenced. The Cryptosporidium species was determined by comparison of the obtained sequences with that of corresponding Cryptosporidium sequences available in GenBank by BLAST ( and phylogenetic analysis with maximum likelihood (ML) using PAUP * . The overall prevalence of Cryptosporidium infection in white yak was 5.26% (4/76). Species identification showed C. andersoni in one sample (collected in September), and C. bovis in three samples (one collected in November and two collected in September). Conclusions: The present investigation revealed the existence of Cryptosporidium infection in white yaks in China, for the first time, and two Cryptosporidium species, namely C. andersoni and C. bovis, were identified. These findings extend the host range for Cryptosporidium spp., and also provide base-line information for further studies of molecular epidemiology and control of Cryptosporidium infection in the unique white yaks.
doi:10.1186/1756-3305-7-230 pmid:24885747 pmcid:PMC4033679 fatcat:bgosojfaknek5d4kh6yu27doom

Seroprevalence and Risk Factors ofChlamydia abortusInfection in Tibetan Sheep in Gansu Province, Northwest China

Si-Yuan Qin, Ming-Yang Yin, Wei Cong, Dong-Hui Zhou, Xiao-Xuan Zhang, Quan Zhao, Xing-Quan Zhu, Ji-Zhang Zhou, Ai-Dong Qian
2014 The Scientific World Journal  
Zhu.  ...  Foundation of China (Grant no. 31272566), the Science Fund for Creative Research Groups of Gansu Province (Grant no. 1210RJIA006), and the Program for Outstanding Scientists in Agricultural Research to Xing-Quan  ... 
doi:10.1155/2014/193464 pmid:25401129 pmcid:PMC4226191 fatcat:c54h6c2bj5burik7ufxn25hjeq

Fagopyrum wenchuanenseandFagopyrum qiangcai, Two New Species of Polygonaceae from Sichuan, China

Ji-Rong Shao, Mei-Liang Zhou, Xue-Mei Zhu, De-Zhou Wang, Da-Quan Bai
2011 Novon  
Fagopyrum qiangcai D. Q. Bai and F. new species of wild-type buckwheat, here described wenchuanense J. R. Shao, two new species of as F. qiangcai D. Q. Bai and F. wenchuanense J. R. Polygonaceae from Wenchuan County, Sichuan Shao, in Wenchuan County, Aba Prefecture, Sichuan Province, China, are described and illustrated. Province, China. In this paper, we discuss the Fagopyrum qiangcai is closely related to F. escumorphological characteristics and karyotypes of these lentum Moench based on its
more » ... eafy base, triangular new species and their relationships to existing leaves, and terminal or axillary racemes. The new species. species differs in having congested nodes at the base of the plant, triangular to oval terminal leaves with MATERIALS AND METHODS bright red veins, dense inflorescences, white punctate adaxial leaf surfaces, and an articulate pedicel. Species of the two new buckwheat taxa were Fagopyrum qiangcai is diploid, 2n ¼ 2x ¼ 16, with a collected in July 2006 and cultivated at Sichuan karyotype of 12 metacentric and four submetacentric Agricultural University. Selected seeds were soaked chromosomes. Fagopyrum wenchuanense is closely in distilled water and germinated at 25 ¡ C for 24 hr. related to F. gracilipes (Hemsl.) Dammer ex Diels but until root tips were 1-2 cm long. Primary roots were differs in its caespitose habit, the plants often with pretreated in ice water for 27 hr., fixed for 24 hr. in prostrate stems. Its leaves vary from broadly cordate 3:1 glacial acetic acid:ethanol solution, rinsed with to ovate to hastate or long hastate, the pedicels are distilled water, and hydrolyzed in 1 mol/L HCl at basally puberulent, the stamens and pistils are 25 ¡ C for 8-15 min. After rinsing, the root tips were variable in length, and the capsules are ellipsoidsquashed in phenol rosaniline, and five welltriangular or broadly ovoid-triangular, 3-3.5 3 2.5-3 scattered metaphase plates of each genotype were mm. Fagopyrum wenchuanense is diploid, 2n ¼ 2x ¼ selected for karyotype analysis. Karyotype averages 16, with a karyotype of 16 metacentric chromosomes. were calculated using the method described by Li
doi:10.3417/2009107 fatcat:mfiboqdg5jbv3ij3vqxzpbwgt4

Water scaling of ecosystem carbon cycle feedback to climate warming

Quan Quan, Dashuan Tian, Yiqi Luo, Fangyue Zhang, Tom W. Crowther, Kai Zhu, Han Y. H. Chen, Qingping Zhou, Shuli Niu
2019 Science Advances  
It has been well established by field experiments that warming stimulates either net ecosystem carbon uptake or release, leading to negative or positive carbon cycle–climate change feedback, respectively. This variation in carbon-climate feedback has been partially attributed to water availability. However, it remains unclear under what conditions water availability enhances or weakens carbon-climate feedback or even changes its direction. Combining a field experiment with a global synthesis,
more » ... show that warming stimulates net carbon uptake (negative feedback) under wet conditions, but depresses it (positive feedback) under very dry conditions. This switch in carbon-climate feedback direction arises mainly from scaling effects of warming-induced decreases in soil water content on net ecosystem productivity. This water scaling of warming effects offers generalizable mechanisms not only to help explain varying magnitudes and directions of observed carbon-climate feedback but also to improve model prediction of ecosystem carbon dynamics in response to climate change.
doi:10.1126/sciadv.aav1131 pmid:31457076 pmcid:PMC6703863 fatcat:de2wpappbjcdlokjk2njtq5ciq

Synthesis and Antitumor Activity of (3-Hydroxyacrylato-O,O′) Diammineplatinum(II)

Yong-Zhi Shu, Jun Lin, Bao-Quan Zhu, Quan-Hai Liu, Bin Zhou, Hai-Feng Hu, Dian-Wen Ju
2021 Pharmaceutical Fronts  
AbstractAs an indispensable part of cancer chemotherapy, platinum drugs still play an important role in cancer treatment. In this study, two platinum(II) complexes with Michael acceptor 3-hydroxyacrylic acid as the leaving group were synthesized from cis-diamminediiodo platinum(II) and 3-ethoxyacrylic acid. The structures of complexes 1 and 2 were confirmed by elemental analysis, infrared, 1H NMR, 13C NMR, and HRMS (high-resolution mass spectrometry). Results from MTT assay showed that
more » ... 1 and 2 significantly inhibited the growth of the four human tumor cell lines (HCT-116, A549, CFPAC-1, and BxPC-3) with the IC50 values of the two compounds similar to that of the control drug (oxaliplatin) on HCT-116 and A549. Besides, results from an in vivo study in a mouse S180 sarcoma model showed that complex 1 had a higher antitumor activity in comparison to oxaliplatin. In conclusion, our article indicated that complex 1 deserved further research and development in cancer treatment.
doi:10.1055/s-0041-1730956 fatcat:vuntvmjklzfthiew6s6t6iajjm

Mutual Feedback Between Epidemic Spreading and Information Diffusion [article]

Xiu-Xiu Zhan, Chuang Liu, Ge Zhou, Zi-Ke Zhang, Gui-Quan Sun, Jonathan J. H. Zhu
2015 arXiv   pre-print
The impact that information diffusion has on epidemic spreading has recently attracted much attention. As a disease begins to spread in the population, information about the disease is transmitted to others, which in turn has an effect on the spread of disease. In this paper, using empirical results of the propagation of H7N9 and information about the disease, we clearly show that the spreading dynamics of the two-types of processes influence each other. We build a mathematical model in which
more » ... th types of spreading dynamics are described using the SIS process in order to illustrate the influence of information diffusion on epidemic spreading. Both the simulation results and the pairwise analysis reveal that information diffusion can increase the threshold of an epidemic outbreak, decrease the final fraction of infected individuals and significantly decrease the rate at which the epidemic propagates. Additionally, we find that the multi-outbreak phenomena of epidemic spreading, along with the impact of information diffusion, is consistent with the empirical results. These findings highlight the requirement to maintain social awareness of diseases even when the epidemics seem to be under control in order to prevent a subsequent outbreak. These results may shed light on the in-depth understanding of the interplay between the dynamics of epidemic spreading and information diffusion.
arXiv:1506.03932v1 fatcat:id7yhs2lovdknmxgtsiucbj2ju

Fagopyrum pugense (Polygonaceae), a New Species from Sichuan, China

Yu Tang, Mei-Liang Zhou, Da-Quan Bai, Ji-Rong Shao, Xue-Mei Zhu, De-Zhou Wang, Yi-Xiong Tang
2010 Novon  
Ganzi, Sichuan near riverbanks dominated by shrubs 27 July 2007 600-1000 Ji-Rong Shao & Da- Quan Bai s.n. (SAU) F. pugense T.  ... 
doi:10.3417/2008072 fatcat:ycvrsb3wd5e7nmcgkjd7mawjne

Prescribing practice and evaluation of appropriateness of enteral nutrition in a university teaching hospital

Quan Zhou, Xiu-Ping Zhu, Ling-ling Zhu
2013 Therapeutics and Clinical Risk Management  
Dovepress Dovepress 42 Zhu et al Powered by TCPDF (  ...  Dovepress Dovepress 38 Zhu et al Table 1 1 Nutritional composition of eight enteral nutrition formulas Type of enteral nutrition Total protein type Table 2 2 Combination use of different  ... 
doi:10.2147/tcrm.s41022 pmid:23404197 pmcid:PMC3569378 fatcat:3oe4ybyi3jfunhylemcqcowgtm

Extracellular vesicles: novel vehicles in herpesvirus infection

Lingzhi Liu, Quan Zhou, Yan Xie, Lielian Zuo, Fanxiu Zhu, Jianhong Lu
2017 Virologica Sinica  
HSV-2 is one of the most prevalent genital pathogens in humans, infecting the genital tract mucosa (Lee and Ashkar, 2012; Zhu et al., 2017) .  ...  The innate and adaptive immune processes underlying the response to HSV-2 provide a powerful foundation for the research and development of an effective HSV-2 vaccine (Akinyi et al., 2017; Zhu et al.,  ... 
doi:10.1007/s12250-017-4073-9 pmid:29116589 fatcat:blje4h3yhrbw3klsrnxic56mui

Aristololactam derivatives from the fruits of Aristolochia contorta Bunge

Hao-Wei Ma, Cun-Zhu Dong, Xue-Ming Zhou, Miao-Miao Bu, Sen-Quan Yu
2018 Figshare  
Three new aristololactam derivatives, aristololactam W–Y (1–3), and three known compounds (4–6) were isolated from the fruits of Aristolochia contorta Bunge. Compounds 1 and 2 represent the first example of an N-CH2OCH3 aristololactam derivative from natural products. Their structures were elucidated by 1D/2D NMR and HRESIMS spectra. All of the isolated compounds were evaluated for their insecticidal activity against 4th instar larvae of Aedes aegypti. Compound 4 displayed insecticidal activity with LC50 value of 3.54 μg/mL.
doi:10.6084/m9.figshare.5769315 fatcat:n4vmbb63inajlj7zftfzmkbvm4

Efficient primal heuristics for mixed-integer linear programs [article]

Akang Wang, Linxin Yang, Sha Lai, Xiaodong Luo, Xiang Zhou, Haohan Huang, Shengcheng Shao, Yuanming Zhu, Dong Zhang, Tao Quan
2022 arXiv   pre-print
This paper is a short report about our work for the primal task in the Machine Learning for Combinatorial Optimization NeurIPS 2021 Competition. For each dataset of our interest in the competition, we propose customized primal heuristic methods to efficiently identify high-quality feasible solutions. The computational studies demonstrate the superiority of our proposed approaches over the competitors'.
arXiv:2202.02725v1 fatcat:2dm4twikrbfalmv4bxiavkai3q
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