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| 1 | Synthesis and evaluation of an oil-soluble viscosity reducer for heavy oil显示文摘To reduce the viscosity of highly-viscous oil of the Tahe oilfield (Xinjiang,China),an oilsoluble polybasic copolymer viscosity reducer for heavy oil was synthesized using the orthogonal method.The optimum reaction conditions are obtained as follows:under the protection of nitrogen,a reaction time of 9 h,monomer mole ratio of reaction materials of 3:2:2 (The monomers are 2-propenoic acid,docosyl ester,maleic anhydride and styrene,respectively),initiator amount of 0.8% (mass percent of the sum of all the monomers) and reaction temperature of 80 oC.This synthesized viscosity reducer is more effective than commercial viscosity reducers.The rate of viscosity reduction reached 95.5% at 50 oC.Infrared spectra (IR) and interfacial tensions of heavy oil with and without viscosity reducer were investigated to understand the viscosity reduction mechanism.When viscosity reducer is added,the molecules of the viscosity reducer are inserted amongst the molecules of crude oil,altering the original intermolecular structure of crude oil and weakening its ability to form hydrogen bonds with hydroxyl or carboxyl groups,so the viscosity of crude oil is reduced.Field tests of the newly developed oil-soluble viscosity reducer was carried out in the Tahe Oilfield,and the results showed that 44.5% less light oil was needed to dilute the heavy oil to achieve the needed viscosity. | Guo Jixiang Wang Heyi Chen Chaogang Chen Yun Xie Xiaohai | 2010 | Petroleum Science2010，7，4： | 24 |
| 2 | Diamond semiconductor and elastic strain engineering显示文摘Diamond,as an ultra-wide bandgap semiconductor,has become a promising candidate for next-generation microelec-tronics and optoelectronics due to its numerous advantages over conventional semiconductors,including ultrahigh carrier mo-bility and thermal conductivity,low thermal expansion coefficient,and ultra-high breakdown voltage,etc.Despite these ex-traordinary properties,diamond also faces various challenges before being practically used in the semiconductor industry.This review begins with a brief summary of previous efforts to model and construct diamond-based high-voltage switching diodes,high-power/high-frequency field-effect transistors,MEMS/NEMS,and devices operating at high temperatures.Following that,we will discuss recent developments to address scalable diamond device applications,emphasizing the synthesis of large-area,high-quality CVD diamond films and difficulties in diamond doping.Lastly,we show potential solutions to modulate diamond’s electronic properties by the“elastic strain engineering”strategy,which sheds light on the future development of diamond-based electronics,photonics and quantum systems. | Chaoqun Dang Anliang Lu Heyi Wang Hongti Zhang Yang Lu | 2022 | Journal of Semiconductors2022，43，2： | 2 |
| 3 | Pityriasis rubra pilaris (PRP) with preceding Epstein-Barr virus infection:a new type PRP with non-HIV virus infection?显示文摘To the editor:A 28-year-old Chinese man presented with multiple orange yellow papules and erythematous with fine scales and subtle follicular prominence on his face,scalp,trunk and extremities on February 1,2012.Four weeks earlier (December 30,2011),multiple orange yellow papules had appeared firstly on the face,along with a fever (Tmax 38.5℃) and pharyngalgia.Gradually the skin lesions extended to the head,trunk and extremities and developed scales.The palmoplantar surfaces displayed erythema and hyperkeratosis (Figure 1A).Histopathological examinations were consistent with pityriasis rubra pilaris (PRP) (Figure 1B).The laboratory tests revealed a white cell count of 11.33× 109/L (neutrophils 29.7%,lymphocytes 60.8%) decreased to 7.09× 109/L (neutrophils 41.2%,lymphocytes 49%) one month later (January 3,2012).Epstein-Barr virus (EBV) viral capsid antigen immune globulin G (IgG/VCA) antibody was positive (2.78 in enzyme immunoassay;normal range <0.80;results presented as arbitrary units) and increased to 4.33 one month later (January 3,2012).EBV IgM/VCA antibody levels were high (7.14;normal range <0.8) and decreased to 3.05.Detection of EBV-DNA copies was not done on December 30,2011.However,it showed a negative result on January 3,2012.EBER-in situ hybridization (EBER-ISH) showed a negative result in the skin biopsy slides.These results suggested that this patient suffered from primary EBV infection.Rest tests,such as other virus infections,malignances,autoimmune diseases were normal or negative.For treatment,the patient received 0.1% tarcrolimus ointment;the lesions generally disappeared and no new lesions have been observed during 3 months of follow-up. | Wang Tao Liu Jie Liu Yuehua Zheng Heyi | 2014 | Chinese Medical Journal2014，，12： | 2 |
| 4 | The effect of vial type and cocktail quantity on tritium measurement in LSC 显示文摘 | Chen Zhilin Xing Shixiong Wang Heyi | 2010 | Applied Radiation and Iso- topes2010，68，9： | 1 |
| 5 | Preliminary Design for a China ITER Test Blanket Module显示文摘 | FENG Kaiming PAN Chuanhong ZHANG Guoshu LUO Deli ZHOU Zhiwei YANG Yongwei WANG Xiaoyu HU Gang YUAN Tao CHEN Zhi WANG Heyi LI Zhenqiang ZHAO Zhou ZHENG Guoyao | 2006 | Southwestern Institute of Physics Annual Report2006，，1： | 1 |
| 6 | Chemical Synthesis and Optical Properties of Cds Poly(lactic acid) Nanocomposites and Their Transparent Fluorescent Films显示文摘 | Wang Caifeng Xie Heyi Cheng Yupeng | 2011 | Colloid and Polym Science2011，289，4： | 1 |
| 7 | Structure and biochemical properties of PRL-1, a phosphatase implicated in cell growth, differentiation, and tumor invasion 显示文摘 | Sun Jinping Wang Weiqing Yang Heyi | 2005 | Biochemistry2005，44，12： | 1 |
| 8 | Gate-tunable large-scale flexible monolayer MoS_(2)devices for photodetectors and optoelectronic synapses显示文摘Photodetectors and optoelectronic synapses are vital for construction of artificial visual perception system.However,the hardware implementations of optoelectronic-neuromorphic devices based on conventional architecture usually suffer from poor scalability,light response range,and limited functionalities.Here,large-scale flexible monolayer MoS_(2)devices integrating photodetectors and optoelectronic synapses over the entire visible spectrum in one device have been realized,which can be used in photodetection,optical communication,artificial visual perception system,and optical artificial neural network.By modulating gate voltages,we enable MoS_(2)-based devices to be photodetectors and also optoelectronic synapses.Importantly,the MoS_(2)-based optoelectronic synapses could implement many synaptic functions and neuromorphic characteristics,such as short-term memory(STM),long-term memory(LTM),paired-pulse facilitation(PPF),long-term potentiation(LTP)/long-term depression(LTD),and“learning-experience”behavior.Furthermore,an associative learning behavior(the classical conditioning Pavlov’s dog experiment)was emulated using paired stimulation of optical and voltage pulses.These results facilitate the development of MoS_(2)-based multifunctional optoelectronic devices with a simple device structure,showing great potential for photodetection,optoelectronic neuromorphic computing,human visual systems mimicking,as well as wearable and implantable electronics. | Na Li Congli He Qinqin Wang Jianshi Tang Qingtian Zhang Cheng Shen Jian Tang Heyi Huang Shuopei Wang Jiawei Li Biying Huang Zheng Wei Yutuo Guo Jiahao Yuan Wei Yang Rong Yang Dongxia Shi Guangyu Zhang | 2022 | Nano Research2022，15，6： | 1 |
| 9 | Fabrication of high-strength continuous zirconia fibers and their formation mechanism study显示文摘 | Liu Heyi Hou Xianqin Wang Xinqiang | 2004 | J Am Ceram Soc2004，87，12： | 1 |
| 10 | Study on the technology of CECE–GC system for water detritiation显示文摘 | Sun Ying Wang Heyi Sang Ge Luo Yangming Cao Wei Liu Yingnu Xiong Yifu | 2008 | Fusion Engineering and Design2008，，10： | 1 |
| 11 | Facile synthesis and electrochemical performance of LiFePOJC composites using Fe-P waste slag 显示文摘 | Kang Hanchang Wang Guixin Guo Heyi | 2012 | Industrial & Engineering Chemistry Research2012，51，23： | 1 |
| 12 | Elman's recurrent neural network applied to forecasting the quality of water diversion in the water source of lake taihu显示文摘 | Wang Heyi Gao Yi | 2011 | Energy Procedia2011，11，： | 1 |
| 13 | Multiplex Single Nucleotide Polymorphism Genotyping by MALDI-TOF Mass Spectrometry显示文摘 | Heyi Yang Haijian Wang Jie Wang | 2003 | Anal Biochem2003，314，1： | 1 |
| 14 | Facile Synthesis and Electrochemical Performance of LiFePO_4/C Composites Using Fe-P Waste Slag显示文摘 | Kang Hanchang Wang Guixin Guo Heyi | 2012 | Industrial&Engineering Chemistry Research2012，51，23： | 1 |
| 15 | Radiation-induced defects in different silicon (111) wafers by 400 keV electron irradiation显示文摘The energy deposition for low-energy electron beam on Si-SiO2 models was calculated by Monte-Carlo method. Making use of electron paramagnetic resonance (EPR) technique, an investigation of the effect of dopant type and concentration on EPR signal variations was carried out by using p-type and n-type silicon(111) wafers with concentration of 1×1015 cm 3 and 1×1017 cm 3, and the changes of intensity of defect paramagnetic centers before and after irradiation of electrons were compared. The chemical states of Si-SiO2 structure were determined by X-ray photoelectrons spectroscopy(XPS). The results clearly indicate that the effects of dopant variations (type and concentration) are of obvious difference. Compared with p-type silicon, n-type silicon, especially with higher dopant concentration, tends to produce defect at the interface under low-energy electron irradiation with certain flux, which arises from the hole trapped on a nonbridging oxygen atom bonded to P. It is represented in the form of distinct changes of POHC intensity and P2P spectrum. According to the theoretical and experimental data, the relationship among electron energy deposition, chemical states of element Si at SiO2 -Si(111) interface, and radiation effect were analyzed and discussed. | Gao, Hui Wang, Heyi Yuan, Yonggang | 2012 | Rare Metals2012，31，3： | 0 |
| 16 | Histiocytoid Sweet's syndrome associated with rheumatoid arthritis and pleuritis显示文摘To the editor:Histiocytoid Sweet's syndrome (HSS) is an entity which has clinical features similar to typical Sweet's syndrome (SS) but is distinguished by dermal infiltration of immature neutrophilic granulocytes.Herein,we report a case of HSS associated with rheumatoid arthritis (RA) and pleuritis.She initially responded to prednisone. | Wang Tao Liu Yuehua Zheng Heyi | 2014 | Chinese Medical Journal2014，，7： | 0 |
| 17 | Electrolyte-gated transistors for neuromorphic applications显示文摘Von Neumann computers are currently failing to follow Moore’s law and are limited by the von Neumann bottleneck.To enhance computing performance,neuromorphic computing systems that can simulate the function of the human brain are being developed.Artificial synapses are essential electronic devices for neuromorphic architectures,which have the ability to perform signal processing and storage between neighboring artificial neurons.In recent years,electrolyte-gated transistors(EGTs)have been seen as promising devices in imitating synaptic dynamic plasticity and neuromorphic applications.Among the various electronic devices,EGT-based artificial synapses offer the benefits of good stability,ultra-high linearity and repeated cyclic symmetry,and can be constructed from a variety of materials.They also spatially separate“read”and“write”operations.In this article,we provide a review of the recent progress and major trends in the field of electrolyte-gated transistors for neuromorphic applications.We introduce the operation mechanisms of electric-double-layer and the structure of EGT-based artificial synapses.Then,we review different types of channels and electrolyte materials for EGT-based artificial synapses.Finally,we review the potential applications in biological functions. | Heyi Huang Chen Ge Zhuohui Liu Hai Zhong Erjia Guo Meng He Can Wang Guozhen Yang Kuijuan Jin | 2021 | Journal of Semiconductors2021，42，1： | 0 |
| 18 | Research progress on low-power artificial intelligence of things(AIoT)chip design显示文摘An artificial intelligence of things(AIoT)chip is a critical hardware component in edge devices that supports data acquisition and processing in the artificial intelligence(AI)era.In this paper,we introduce the architecture and circuit techniques for AIoT systems as well as the design challenges associated with them.To address the design challenges,we describe our design approaches to improve energy efficiency from the standpoints of system architecture,AI computing,and data acquisition circuits.Meanwhile,we present our most recent research progress and state-of-the-art AIoT chip demonstrations at a prestigious conference.Our design techniques improve power and energy efficiency by orders of magnitude on corresponding state of the arts(SOTA),allowing for an advanced AIoT chip design. | Le YE Zhixuan WANG Tianyu JIA Yufei MA Linxiao SHEN Yihan ZHANG Heyi LI Peiyu CHEN Meng WU Ying LIU Yiqi JING Hao ZHANG Ru HUANG | 2023 | Science China(Information Sciences)2023，66，10： | 0 |
| 19 | Effects of Polygonatum sibiricum Polysaccharide on Antioxidant Capacity of the Liver in High-fat Diet Rats显示文摘[Objectives]This study was conducted to investigate the effects of Polygonatum sibiricum polysaccharide(PSP)on antioxidant function in high-fat diet obese rats.[Methods]Thirty five healthy male SD rats were selected to establish an obesity model after feeding a high-fat for 8 weeks.They were then randomly divided into a normal group(NC),a high-fat diet group(HF),and an HF+P.sibiricum polysaccharide group[HF+PSP,300 mg/(kg·d)].After 6 weeks of PSP intervention,the serum and liver of rats were collected,and the activity of aspartate transaminase(AST)and alanine aminotransferase(ALT)in serum,the enzyme activity of superoxide dismutase(SOD),catalase(CAT)and glutathione peroxidase(GSH-Px)and malondialdehyde(MDA)in liver tissue were measured.The pathological changes of liver tissue were observed by HE staining.[Results]Compared with the HF group,PSP could effectively inhibit obesity caused by high-fat diet.It reduced body weight and serum AST and ALT levels,increased the contents of T-SOD,CAT and GSH-Px in the liver,and inhibited the accumulation of MDA content,thereby reducing damage to liver cells caused by a high-fat diet.It indicated that PSP could effectively inhibit obesity in high-fat diet rats and enhance their antioxidant capacity.[Conclusions]This study provides a reference for the study of the antioxidant capacity of PSP. | Heyi GONG Zhifeng LI Chenzhong JIN Yihong HU Yan WANG | 2023 | Agricultural Biotechnology2023，12，4： | 0 |
| 20 | Photocatalytic degradation of 2,4,6-trinitrotoluene显示文摘A Pt/TiO2 photocatalyst was used in the photocatalytic degradation of 2,4,6-trinitrotoluene (TNT) under the irradiation of the simulated sunlight. The results show that the destruction of TNT is faster and more complete with the photocatalyst. The photocatalytic degradation of TNT follows first order kinet-ics. The transformation of nitryl groups of TNT molecules into nitrite and nitrate ions may be acceler-ated in the presence of the Pt/TiO2 photocatalyst. Compared with that without the catalyst, the concentration of nitrate ions was improved 32.3 times within 2.5 h. | LIU XiuHua FU YiBei WANG HeYi ZHONG ZhiJing XU YunShu | 2008 | Science China Chemistry2008，51，10： | 0 |
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