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| 1 | Dissecting the hypothalamic pathways that underlie innate behaviors显示文摘Many complex behaviors that do not require learning are displayed and are termed innate. Although traditionally the subject matter of ethology,innate behaviors offer a unique entry point for neuroscientists to dissect the physiological mechanisms governing complex behaviors. Since the last century,converging evidence has implicated the hypothalamus as the central brain area that controls innate behaviors. Recent studies using cutting-edge tools have revealed that genetically-defined populations of neurons residing in distinct hypothalamic nuclei and their associated neural pathways regulate the initiation and maintenance of diverse behaviors including feeding,sleep,aggression,and parental care. Here,we review the newly-defi ned hypothalamic pathways that regulate each innate behavior. In addition,emerging general principles of the neural control of complex behaviors are discussed. | Xi Zha Xiaohong Xu | 2015 | Neuroscience Bulletin2015，31，6： | 9 |
| 2 | ANTI-HYPOXIA AND ANTI-OXIDATION EFFECTS OF AMINOPHYLLINE ON HUMAN WITH ACUTE HIGH-ALTITUDE EXPOSURE显示文摘Objective To investigate the anti-hypoxia and anti-oxidation effects of aminophylline on human with acute high- altitude exposure. Methods Totally 100 young male army members newly recruited from Sichuan province (400 meters above sea level) were enrolled. They were randomly divided into two groups: 50 in aminophylline group (A group) and 50 in control group (C group). A group and C group orally took aminophylline and placebo respectively for 10 days, 7 days before entering Lhasa (3 658 meters above sea level) by air and 3 days after it. Several parameters were measured at three time points: before drug taken, 7 days after drug taken, and 3 days after ascending high altitude. These parameters included serum levels of nitric oxide (NO), superoxide dismutase (SOD), catalase (CAT), hydrogen dioxide (H2O2), lactic acid (LA), as well as arterial oxygen saturation (SO2), arterial oxygen partial pressure (PaO2), and arterial carbon dioxide partial pressure (PaCO2). Statistical analysis was conducted to compare the difference between two groups with Stata 7.0 software system. Results There were no statistical differences between groups in hypoxia and oxidation indicators before and after drug taken in plain area. Three days after ascending high altitude, the serum levels of SOD, CAT, H2O2, LA, PaCO2 increased in both groups, yet to a much larger degree in C group than A group (P<0.01); and NO, SO2, PaO2 decreased more markedly in C group (P<0.05 for NO, P<0.0001 for SO2 and PaO2). Conclusion Aminophylline has significant anti-hypoxia and anti-oxidation effects at high altitude. | Bo Yang Guang-yi Wang Bin Chen Rong-bin Qin Si Lang Zha Xi Lian Chen | 2007 | Chinese Medical Sciences Journal2007，22，1： | 8 |
| 3 | Content Determination of Astragaloside Ⅳ in Astragalus from Three Different Regions by HPLC显示文摘[Objectives] The content of astragaloside in Astragalus membranaceus(Fisch.) Bge.var.mongholicus(Bge.) Hisao from three different regions was determined.[Methods] Referring to the method recorded in the Chinese Pharmacopoeia(2015 edition),the content of astragaloside IV in A.membranaceus was determined by HPLC.[Results] There were great differences in the astragaloside IV content of A.membranaceus among different regions.The content of astragaloside IV in A.membranaceus cultivated in Inner Mongolia was highest(0.155%),followed by that(0.143%) in A.membranaceus cultivated in Gansu,and the content of astragaloside IV in A.membranaceus cultivated in Shanxi was lowest(0.080%).The contents of astragaloside IV in A.membranaceus from different regions were all in line with the standard(not less than 0.040%) of Chinese Pharmacopoeia(2015 edition).[Conclusions]The content of astragaloside IV in A.membranaceus cultivated in three different regions met the medicinal standards. | Wei XIN Jiangli NIE Ye HAN Yi PEI Nan YANG Yujie LANG Xi ZHA | 2018 | Medicinal Plant2018，9，6： | 2 |
| 4 | Effect of aldrin on life history characteristics of rotifer Brachionus calyciflorus Pallas显示文摘 | Huang L Xi Y L Zha C W | 2007 | Bulletin of Environmental Contamination and Toxicology2007，79，1： | 1 |
| 5 | Effect of sublethal exposure to chlordecone on life history characteristics of freshwater rotifer Brachionus calyciflorus pallas显示文摘 | ZHA C W XI Y L HUANG L | 2007 | Bulletin of envimzunental contamination & toxicolo- gy2007，78，1： | 1 |
| 6 | The possiblity of coherent dual- sourcecounter anti-radiation missle显示文摘 | SI Xi~cai ZHA Yu-feng | 1988 | Aero Electronic Warfare1988，，1： | 1 |
| 7 | Electrodeposition of a dendrite-free 3D Al anode for improving cycling of an aluminum-graphite battery显示文摘Aluminum-metal batteries show great potential as next-generation energy storage due to their abundant resources and intrinsic safety.However,the crucial limitations of metallic Al anodes,such as dendrite and corrosion problems in conventional aluminum-metal batteries,remain challenging and elusive.Here,we report a novel electrodeposition strategy to prepare an optimized 3D Al anode on carbon cloth with an uniform deposition morphology,low local current density,and mitigatory volume change.The symmetrical cells with the 3D Al anode show superior stable cycling(>450 h)and low-voltage hysteresis(~170 mV)at 0.5 mA cm^(−2).High reversibility(~99.7%)is achieved for the Al plating/stripping.The graphite||Al‐4/CC full batteries show a long lifespan of 800 cycles with 54 mAh g^(−1) capacity at a high current density of 1000 mA g^(−1),benefiting from the high capacitive-controlled distribution.This study proposes a novel strategy to design 3D Al anodes for metallic-Al-based batteries by eliminating the problems of planar Al anodes and realizing the potential applications of aluminum-graphite batteries. | Junfeng Li Kwan San Hui Shunping Ji Chenyang Zha Chengzong Yuan Shuxing Wu Feng Bin Xi Fan Fuming Chen Zongping Shao Kwun Nam Hui | 2022 | Carbon Energy2022，4，2： | 1 |
| 8 | Development in research of antitumor effect of flavones compounds 显示文摘 | J Huanghua - yi Zha Xi - liang | 2002 | Chin J New Clin Rem2002，21，7： | 1 |
| 9 | Electronic band gap and transport in Fibonacci quasi-periodic grapheme superlattice显示文摘 | ZHA() Peiliang CHEN Xi | 2011 | Appl Phys Lett2011，9914，： | 1 |
| 10 | Prohibitin suppresses renal interstitial fibroblasts proliferation and phenotypic change induced by transforming growth factor-β1显示文摘 | Wei Guo Hong Xu Jing Chen Yong Yang Jia Wei Jin Rui Fu Hai Mei Liu Xi Liang Zha Zhi Gang Zhang Wen Yan Huang | 2007 | Molecular and Cellular Biochemistry (-)2007，，1： | 1 |
| 11 | Effects of three organophosphorus pesticides on population growth and sexual reproduction of rotifer Brachionus calycifloru Pallas显示文摘 | Ke L-X Xi Y-L Zha C-W et aI | 2009 | Acta Ecologica Sinica2009，29，3： | 1 |
| 12 | Establishment of correlation between reaction kinetics and carbon structures in the char gasification process显示文摘For a gasification process,the char-CO_(2)gasification is the controlling step worthwhile to be deeply investigated.The article chosen corn stalk(CS),poplar sawdust(PS)and bagasse residue(BR)as the typical waste species derived from agricultural,forestal and industrial sources.The char-CO_(2)gasification behavior,reaction kinetics and carbon structure were studied to reveal the intrinsic factors determining the reaction kinetics.Generally,the carbon conversion and maximum conversion rate were influenced by the feedstocks species and char preparation temperatures,as influenced by ash proportion,potassium content in ash and carbon structure of char.The char-CO_(2)reaction for CS was subject more to the catalytic effect of alkali compositions,while pore structure affected more the gasification reaction for PS char.The isoconversional kinetic analysis indicated that the gasification reaction became stable at carbon conversion of 0.5.Subsequently,sectionalized kinetic parameters were calculated for the initial gasification temperature to the temperature reaching 50%conversion.The result showed that high initial gasification temperature increased the char-CO_(2)gasification barrier to hardly start the reaction but accelerate the reaction rate.The carbon structure analyses further clarified that the reaction activation energy was highly related to the microcrystalline structure of carbon,while the reaction rate was more determined by carbon pore structure. | Zefeng Ge Xi Cao Zhenting Zha Yuna Ma Mingxun Zeng Yuqing Wu Zenghui Hou Huiyan Zhang | 2023 | Carbon Resources Conversion2023，6，2： | 0 |
| 13 | On the optimization of financial management of small and medium sized enterprises显示文摘 | ZHA Xiaojing HU Xiaoli TONG Yuyao XI Zhenkai | 2014 | International English Education Research2014，，11： | 0 |
| 14 | ON THE SWERVING OF STRENGTH CURVE FOR STEEL 20Cr11MoVNbNB显示文摘Study was made on the swerving of the curves of strength and hardness vs L-M parameterP=T(20+lgt)for steel 20Crl 1MoVNbNB aged at 550.600 and 650℃ for 0—5000 h,Tbeing aging temperature in K and taging time in h.The swerving seems to be due to:(1)thecoarsening of the mean size of principal precipitate M23C6,(2)the precipitation of Lavesphase MoFe2;(3)the decrease of Mo content in matrix and(4)the recovery andrecrystallization of the matrix phase. | FU Changpu ZHA NG Jinwang Shaanxi Mechanical Engineering Institute,Xi′an.ChinaPAN Jingda D U Wenfeng Beijing Heavy Electric Machine Works,Beijing,China | 1992 | Acta Metallurgica Sinica(English Letters)1992，5，3： | 0 |
| 15 | Numerical simulation of rock-breaking and influence laws of dynamic load parameters during axial-torsional coupled impact drilling with a single PDC cutter显示文摘Axial and torsional impact drilling technology is used to improve the drilling efficiency of hard rock formation in the deep underground.Still,the corresponding theory is not mature,and there are few correlative research reports on the rock-breaking mechanism of axial and torsional coupled impact drilling tools.Considering the influence of the impact hammer geometry and movement on the dynamic load parameters(i.e.,wavelength,amplitude,frequency,and phase difference),a numerical model that includes a hard formation and single polycrystalline diamond compact cutter was established.The Riedel-Hiermaier-Thoma model,which considers the dynamic damage and strength behavior of rocks,was adopted to analyze the rock damage under axial and torsional impact loads.The numerical simu-lation results were verified by the experimental results.It was found that compared with conventional drilling,the penetration depths of axial,torsional,and axial-torsional coupled impact drilling increased by 31.3%,5.6%,and 34.7%,respectively.Increasing the wavelength and amplitude of the axial impact stress wave improved the penetration depth.When the bit rotation speed remained unchanged,increasing the frequency in the axial and circumferential directions had little effect on the penetration depth.However,as the frequency increased,the cutting surface became increasingly smooth,which reduced the occurrence of bit vibration.When the phase difference between the axial and circumfer-ential stress waves was 25%,the penetration depth significantly increased.In addition,the bit vibration problem can be effectively reduced.Finally,the adjustment of engineering and tool structure parameters is proposed to optimize the efficiency of the axial-torsional coupled impact drilling tool. | Yan Xi Hao-Yu Wang Chun-Qing Zha Jun Li Gong-Hui Liu Bo-Yun Guo | 2023 | Petroleum Science2023，20，3： | 0 |
| 16 | Magnetic property recovery in Nd-Fe-B bonded magnet wastes with chemical reaction and physical dissolution显示文摘The main difficulty for the recovery of Nd-Fe-B bonded magnet wastes is how to completely remove the epoxy resins.In this study,chemical reaction and physical dissolution were combined to remove the epoxy resins by adding ammonia-water and mixed organic solvents.Ammonia-water can react with the epoxy functional group of epoxy resin to generate polyols.Mixed organic solvents of alcohol,dimethyl formamide(DMF),and tetrahydrofuran(THF) can dissolve the generated polyols and residual epoxy resins.Under the optimum processing conditions,the epoxy resins in the waste magnetic powders are substantially removed.The oxygen and carbon contents in the recycled magnetic powder are reduced from 13500 × 10^(-6) to 1600 × 10^(-6) and from 19500 × 10^(-6) to 2100 × 10^(-6) with the reduction ratio of88.1% and 89.2%,respectively.The recycled magnetic powder presents improved magnetic properties with MS of 1.306 × 10^(-1) A·m^(2)/g,Mr of 0.926 × 10^(-1) A·m^(2)/g,Hcj of 1.170 T,and(BH)max of 125.732 kJ/m^(3),which reach 99.8%,99.4%,95.9%,and 96.9% of the original magnetic powders,respectively. | Min Liu Haiyuan Cui Qingyan Li Peihong Zhu Weiqiang Liu Qingmei Lu Dongtao Zhang Zaisheng Pang Xi Yu Chunhui Yu Shanshun Zha Youhao Liu Xiaofei Yi Ming Yue | 2021 | Journal of Rare Earths2021，39，11： | 0 |
| 17 | Molecular Dynamics Simulation of Hydrate Decomposition Under Action of Alcohol Inhibitors显示文摘The molecular dynamics method is used to investigate decomposition of methane hydrate at different temperatures,pressures and concentrations of inhibitor.By analyzing the parameters of system conformation,mean square displacement and radial distribution function,the decomposition of hydrate in the presence of alcohol inhibitors ethylene glycol and glycerol is explored.The results show that the hydroxyl groups in alcohol molecules can destroy the cage structure of hydrate,and form hydrogen bonds with nearby water molecules to effectively prevent the reformation of hydrate.Therefore,ethylene glycol and glycerol serve as inhibitors of methane hydrate,furthermore,in terms of inhibition effect,glycerol is better than ethylene glycol by comparing rate of hydrate decomposition. | Shuyan Wang Xuqing Zha Baoli Shao Jing Wang Xi Chen Jiawei Fan | 2023 | Journal of Harbin Institute of Technology(New Series)2023，30，6： | 0 |
| 18 | Minimax Q-learning design for H_(∞) control of linear discrete-time systems显示文摘The H_(∞)control method is an effective approach for attenuating the effect of disturbances on practical systems, but it is difficult to obtain the H_(∞)controller due to the nonlinear Hamilton-Jacobi-Isaacs equation, even for linear systems. This study deals with the design of an H_(∞)controller for linear discrete-time systems. To solve the related game algebraic Riccati equation(GARE), a novel model-free minimax Q-learning method is developed, on the basis of an offline policy iteration algorithm, which is shown to be Newton’s method for solving the GARE. The proposed minimax Q-learning method, which employs off-policy reinforcement learning, learns the optimal control policies for the controller and the disturbance online, using only the state samples generated by the implemented behavior policies. Different from existing Q-learning methods, a novel gradient-based policy improvement scheme is proposed. We prove that the minimax Q-learning method converges to the saddle solution under initially admissible control policies and an appropriate positive learning rate, provided that certain persistence of excitation(PE)conditions are satisfied. In addition, the PE conditions can be easily met by choosing appropriate behavior policies containing certain excitation noises, without causing any excitation noise bias. In the simulation study, we apply the proposed minimax Q-learning method to design an H_(∞)load-frequency controller for an electrical power system generator that suffers from load disturbance, and the simulation results indicate that the obtained H_(∞)load-frequency controller has good disturbance rejection performance. | Xinxing LI Lele XI Wenzhong ZHA Zhihong PENG | 2022 | Frontiers of Information Technology & Electronic Engineering2022，23，3： | 0 |
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