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Dance2MIDI:Dance-driven multi-instrument music generation

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Computational Visual Media 2024年第4期10卷 791-802页

作者： Bo Han Yuheng Li yixuan Shen yi ren Feilin Han College of Computer Science and Technology Zhejiang UniversityHangzhou 310058China National University of Singapore Singapore 119077Singapore Speech&Audio Team Bytedance AI LabSingapore 048583Singapore Department of Film and TV Technology Beijing Film AcademyBeijing 100088China

Dance-driven music generation aims to generate musical pieces conditioned on dance *** works focus on monophonic or raw audio generation,while the multi-instrument scenario is *** challenges associated with dancedriven multi-instrument music(MIDI)generation are twofold:(i)lack of a publicly available multi-instrument MIDI and video paired dataset and(ii)the weak correlation between music and *** tackle these challenges,we have built the first multi-instrument MIDI and dance paired dataset(D2MIDI).Based on this dataset,we introduce a multi-instrument MIDI generation framework(Dance2MIDI)conditioned on dance ***,to capture the relationship between dance and music,we employ a graph convolutional network to encode the dance *** allows us to extract features related to dance movement and dance ***,to generate a harmonious rhythm,we utilize a transformer model to decode the drum track sequence,leveraging a cross-attention ***,we model the task of generating the remaining tracks based on the drum track as a sequence understanding and completion task.A BERTlike model is employed to comprehend the context of the entire music piece through self-supervised *** evaluate the music generated by our framework trained on the D2MIDI dataset and demonstrate that our method achieves state-of-the-art performance.

关键词： video understanding music generation symbolic music cross-modal learning self-supervision

Experimental study on 830 MPa grade pipeline steel containing chromium

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International Journal of Minerals,Metallurgy and Materials 2009年第3期16卷 273-277页

作者： yi ren Shuai Zhang Shuang Wang Wen-yue Liu Technical Center Anshan Iron ＆ Steel Co. Ltd. Ar shan 114009 China

The diversity of microstructure and properties of 830 MPa grade pipeline steel containing chromium was investigated by optical microscope and transmission electron microscopy. The main microstructures were multiple configurations, containing lath bainite and granule bainitc. Mechanical properties test results showed that the yield strength and tensile strength improved with increasing chromium content. The toughness and elongation decreased at the same time, so temper process was introduced. Appling proper temper parameters, the values of toughness and elongation were improved dramatically, and the strength decreased slightly.

关键词： chromium high strength pipeline steel thermo-mechanical controlled process

A Mechanism Study of a Novel Acid-Activatable Michael-Type Fluorescent Probe for Thiols

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Chinese Journal of Chemical Physics 2015年第3期28卷 277-287,I0001页

作者： Yao Tong Chun-guang Dai yi ren Shi-wei Luo Department of Chemistry University of Science and Technology of China Hefei 230026 China College of Chemistry and State Key Laboratory of Biotherapy Sichuan University Chengdu 610064 China

A Michael addition is usually taken as a base-catalysed reaction. However, our synthesized 2-（quinolin-2-ylmethylene） malonic acid （QMA） as a Michael-type thiol fluorescent probe is acid-active in its sensing reaction. In this work, based on theoretic calculation and experimental study on 7-hydroxy-2-（quinolin-2-ylmethylene） malonic acid, we demonstrated that QMA as a Michael acceptor is acid-activatable, i.e., it works only in solutions at pH〈7, and the lower the pH of solutions is, the higher reactivity QMA has. In alkaline solution, the malonate QMA[-2H＋]2- cannot react with both RSand RSH. In contrast, 2-（quinolin-2- ylmethylene） malonic ester （QME）, the ester of QMA, reveal a contrary pH effect on its sensing reaction, that is, it can sense thiols in alkaline solutions but not in acidic solutions, like a normal base-catalysed Michael addition. The values of activation enthalpies from theoretic calculation support the above sensing behavior of two probes under different pH conditions. In acidic solutions, the protonated QMA is more highly reactive towards electrophilic attack over its other ionized states in neutral and alkaline solutions, and so can react with lowly reactive RSH. In contrast, there is a big energy barrier in the interaction of QME with RSH （acidic solutions）, and the reaction of QME with the highly reactive nucleophile RS- is a low activation energy process （in alkaline solutions）. Theoretic calculation reveals that the sensing reaction of QMA undergoes a 1,4-addition process with neutral thiols （RSH）, and a 1,2-addition pathway for the sensing reaction of QME with RS-. Therefore, the sensing reaction of QMA is an acid-catalysed Michael addition via a 1,4-addition, and a normal base-catalysed Michael addition via a 1,2-addition.

关键词： Fluorescent probe Thiols Michael addition DFT calculation Transitionstate Activation enthalpy

Review of risk factors,clinical manifestations,rapid diagnosis,and emergency treatment of neonatal perioperative pneumothorax

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World Journal of Clinical Cases 2022年第33期10卷 12066-12076页

作者： Xu Zhang Ning Zhang Yue-yi ren Department of Heart Center Women's and Children's Hospital Affiliated to Qingdao UniversityQingdao 266034Shandong ProvinceChina Department of Clinical Laboratory Women's and Children's Hospital Affiliated to Qingdao UniversityQingdao 266034Shandong ProvinceChina

Perioperative neonatal pneumothorax(NP)is rare but very *** of the surgeries and treatments in the neonatal period are time-limited or emergent,and there are often some risk factors for pneumothorax before ***,surgeons and anesthesiologists need to identify possible risk factors for pneumothorax before surgery in preterm babies,patients receiving mechanical ventilation and those with underlying lung *** clinical presentation of NP is nonspecific,and patients may rapidly develop life-threatening complications if not promptly diagnosed and *** review highlights recent progress in the identification of risk factors,clinical manifestations,diagnosis and management of NP during the perioperative period.

关键词： Neonatal Perioperative Pneumothorax Risk factors Clinical manifestations Diagnosis Management

Vector and Spinor Decomposition of SU（2） Gauge Potential, Their Equivalence, and Knot Structure in SU（2） Chern-Simons Theory

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Communications in Theoretical Physics 2007年第5期47卷 875-878页

作者： DUAN yi-Shi ren Ji-Rong LI Ran Institute of Theoretical Physics Lanzhou University Lanzhou 730000 China

In this paper, spinor and vector decompositions of SU（2） gauge potential are presented and their equivalence is constructed using a simply proposal. We also obtain the action of Faddeev nonlinear 0（3） sigma model from the SU（2） mass/ve gauge field theory, which is proposed according to the gauge invariant principle. At last, the knot structure in SU（2） Chern-Simons filed theory is discussed in terms of the Φ-mapping topological current theory, The topological charge of the knot is characterized by the Hopf indices and the Brouwer degrees of Φ-mapping.

关键词： SU(2) gauge potential decomposition massive gauge theory Chern-Simons knot

Dual Space Analyzing Based on Symmetry Properties for Phonons of Si Quantum Dot

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Communications in Theoretical Physics 2002年第7期38卷 91-98页

作者： QIN Guo-yi ren Shang-Fen ZHANG Zhi-Yong Department of Physics Nanjing University Nanjing 210093 China Department of Physics Illinois State University Normal IL 61790-4560 USA Department of Physics Tianjin Normal University Tianjin 300074 China

Phonon modes in spherical Si quantum dots (QDs) with up to 7.9 nm in diameter are calculated by using the projection operators of the group theory into valence force field model. The phonons of dot modes in each of five irreducible representations (symmetries) are classified by using a dual space analysis method. It is found that the bulk-like modes with localization radius much smaller than the dot's radius have clearly pronounced bulk specific-κdefinite bulk band (one in six modes). In Si dots of all sizes, each specific bulk-like dot mode has specific *** dot modes and bulk-like X-derived TA and LA dot modes red-shift in frequency with decreasing dot size. There is almost not LO/TO mixing for bulk-like modes. As for the surface-like modes localized at the periphery of the dot,their eigenmodes have not a dominant bulk specific-κ point parentage or a dominant BZ parentage around some special point. They are a superposition of many bulk bands with κ from all over the bulk BZ. They have much significant mode mixing than the bulk-like phonons. The classification of dot modes based on the symmetry of group theory will bring advantageous to the discussion of Ramam spectrum, electron-phonon interaction and other phonon-assisted effects in QDs.

关键词： phonon modes, quantum dots, dual space analyzing

Numerical and physical simulations of array laterolog in deviated anisotropic formation

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Petroleum Science 2022年第5期19卷 2107-2119页

作者： yi-Zhi Wu Zhen-Guan Wu yi-ren Fan Tao Xing Chao-Liu Li Chao Yuan School of Geosciences China University of PetroleumQingdao266580ShandongChina Laboratory for Marine Mineral Resources Qingdao National Laboratory for Marine Science and TechnologyQingdao266071ShandongChina CNPC Key Laboratory for Well Logging China University of PetroleumQingdao266580ShandongChina Research Institute of Petroleum Exploration and Development PetroChinaBeijing100083China

Due to the tremendous amount of high-resolution measurement information,array laterolog is widely used in evaluations of deviated anisotropic ***,the precision of a complementary numerical simulation should be improved as high as the core of fine-scale reservoir ***,the 3D finite element method(3D-FEM)is presented to simulate the array laterolog ***,a downscaled physical simulation system is introduced to validate and calibrate the precision of the ***,the size of the downscaled system is determined by ***,the surrounding and investigated beds are represented by a sodium chloride solution and planks soaked in solution,***,a half-space measurement scheme is presented to improve the experimental ***,the corresponding sensitivity function and separation factor are established to analyze the effects of the formation anisotro py and dipping angle on the array laterolog *** numerical and experimental results indicate that the half-space method is practical,and the mean relative error between the numerical and experimental results is less than 5%,which indicates that the numerical simulation is *** the proposed approach,the reversal angle of array laterolog response curves in anisotropic formations can be observed,and this range is determined to be 50°-62°.

关键词： Anisotropic formation Array laterolog Downscaled physical simulation Sensitivity function Reversal angle

Prognostic Value of ALP and LDH in Periampullary Carcinoma Patients Undergoing Surgery

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Current Medical Science 2022年第1期42卷 150-158页

作者： Chao DANG Yun-hua DENG ren-yi QIN Department of Pancreatic-Biliary Surgery Tongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430030China Department of Dermatology Tongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430030China

Objective:Conversion of normal cells to cancer cells is often accompanied by abnormal synthesis of serum *** alkaline phosphatase(ALP)and lactate dehydrogenase(LDH)have been reported to have prognostic value in a variety of *** aim of this study was to investigate the effect of preoperative serum ALP and LDH levels on the prognosis of patients with periampullary carcinoma who underwent pancreatoduodenectomy(PD).

关键词： periampullary malignancy pancreatoduodenectomy alkaline phosphatase lactate dehydrogenase prognostic value

Effect of Microstructure on Corrosion Behavior of Mg–Sr Alloy in Hank's Solution

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Acta Metallurgica Sinica(English Letters) 2019年第3期32卷 305-320页

作者： Jia-Hui Dong Li-Li Tan yi-Bin ren Ke Yang Institute of Metal Research Chinese Academy of Science School of Materials Science and Engineering University of Science and Technology of China

Mg–Sr alloy has been studied as a potential biodegradable material with excellent bioactivity to promote the bone formation. However, its degradation behavior needs to be well controlled to avoid the negative effect, which is important for future application. Therefore in this study, the microstructure and its effect on corrosion behavior of an Mg–1.5 Sr alloy were investigated. The microstructures of the alloy under different processing procedures were characterized by both optical and scanning electron microscopes. The corrosion performance was studied in Hank's solution using immersion,potentiodynamic polarization and electrochemical impedance spectroscopy(EIS) tests. The results showed that the grain size and the amount and distribution of b-Mg_(17)Sr_2 had obvious effects on the corrosion behavior of Mg–Sr alloy. The smaller the grain size was, the more the protective surface layer formed on Mg–Sr alloy, and the higher the corrosion resistance was. For the as-cast Mg–Sr alloy, the network-like second phases precipitated along the grain boundaries could not hinder the corrosion due to their own corrosion cracking accelerating the intergranular corrosion. However, the refinement of second phases increased the corrosion resistance of the as-extruded alloy. After solution treatment at 450 °C for 5 h, the grains in the alloy did not grow much and b-Mg_(17)Sr_2 phases homogenously distributed in the alloy, resulting in the increase in corrosion resistance. However, after aging treatment, large amount of precipitated second phases increased the galvanic corrosion of the alloy, accelerating the development of corrosion.

关键词： Mg–Sr alloy Microstructure Corrosion Extrusion Heat treatment