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Chinese Physics B 2020年第8期29卷 342-348页

作者： Yi-yi Li hao-chun zhang School of Energy Science and Engineering Harbin Institute of TechnologyHarbin 150001China

The advanced heat flux manipulating structures inspired by TO-based spatial mapping have aroused wide interests owing to huge potential in high-efficient thermal energy ***,most researches are limited to the realization of single function in one specific structure and appropriate evaluation of the energy transfer process is relatively *** this work,based on time-dependent two-dimensional heat conduction equation,a co-effect structure capable of accomplishing concentration and rotation functions simultaneously is established and validated by finite element simulations compared with the conventional single concentrator and singe *** addition,from the perspective of thermodynamics,the transformed local entropy production rate and total entropy production are theoretically derived and applied to evaluate the quality of energy transfer *** proposed co-effect structure can help to explore other potential mass/flux manipulating devices and the evaluation method is valuable for the further manufacturing as well as optimization of these devices in engineering applications.

关键词： transformation thermodynamics thermal concentration-rotation transformed entropy production transient regime

A novel acidophile community populating waste ore deposits at an acid mine drainage site

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Journal of Environmental Sciences 2007年第4期19卷 444-450页

作者： hao chun-bo zhang Hong-xun BAI Zhi-hui HU Qing zhang Bao-guo Research Center for Eco-Environmental Sciences Chinese Academy of Sciences Beijing 100085 China.

Waste ore samples （pH 3.0） were collected at an acid mine drainage （AMD） site in Anhui, China. The present acidophillc microbial community in the waste ore was studied with 16S rRNA gene clone library and denaturing gradient gel electrophoresis （DGGE）. Eighteen different clones were identified and affiliated withActinobacteria, low G ＋ C Gram-positives, Thermomicrobia, Acidobacteria, Proteobacteria, candidate division TM7, and Planctomycetes. Phylogenetic analysis of 16S rRNA gene sequences revealed a diversity of acidophiles in the samples that were mostly novel. It is unexpected that the moderately thermophilic acidophiles were abundant in the acidic ecosystem and may play a great role in the generation of AMD. The result of DGGE was consistent with that of clone library analysis. These findings help in the better understanding of the generation mechanism of AMD and in developing a more efficient method to control AMD.

关键词： acid mine drainage acidophile 16S rRNA DGGE waste ore

Construction and mechanism analysis on nanoscale thermal cloak by in-situ annealing silicon carbide film

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Chinese Physics B 2022年第1期31卷 382-387页

作者： Jian zhang hao-chun zhang Zi-Liang Huang Wen-Bo Sun Yi-Yi Li School of Energy Science and Engineering Harbin Institute of TechnologyHarbin 150001China

In recent years,there is a strong interest in thermal cloaking at the nanoscale,which has been achieved by using graphene and crystalline silicon films to build the nanoscale thermal cloak according to the classical macroscopic thermal cloak *** carbide,as a representative of the third-generation semiconductor material,has splendid properties,such as the high thermal conductivity and the high wear ***,in the present study,we build a nanoscale thermal cloak based on silicon *** cloaking performance and the perturbation of the functional area to the external temperature filed are analyzed by the ratio of thermal cloaking and the response temperature,*** is demonstrated that silicon carbide can also be used to build the nanoscale thermal ***,we explore the influence of inner and outer radius on cloaking ***,the potential mechanism of the designed nanoscale thermal cloak is investigated by calculating and analyzing the phonon density of states(PDOS)and mode participation rate(MPR)within the *** find that the main reason for the decrease in the thermal conductivity of the functional area is phonon *** study extends the preparation method of nanoscale thermal cloaks and can provide a reference for the development of other nanoscale devices.

关键词： nanoscale thermal cloak silicon carbide molecular dynamics in-situ annealing

Protein Content and Amino Acid Composition in Grains of Wheat-Related Species

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Agricultural Sciences in China 2008年第3期7卷 272-279页

作者： JIANG Xiao-ling TIAN Ji-chun hao Zhi zhang Wei-dong State Key Laboratory of Crop Biology/Group of Quality Wheat Breeding Shandong Agricultural University Tai＇an 271018 P.R. China

The protein content and amino acid composition for 17 wheat-related species （WRS） and three common wheats （control） were determined and analyzed, and the essential amino acids （EAAs） in WRS were evaluated according to FAO/WHO amino acid recommendations. The results showed that the mean protein content for WRS was 16.67%, which was 23.21% higher than that for the control. The mean contents （g 100 g^-1 protein） of most amino acids for WRS were lysine 2.74%, threonine 2.83%, phenylalanine 4.17%, isoleucine 3.42%, valine 3.90%, histidine 2.81%, glutamic acid 29.96%, proline 9.12%, glycine 3.59%, alanine 3.37%, and cysteine 1.57%, which were higher than those for the control. The contents of the other 6 amino acids for WRS were lower than those for the control. The materials （Triticum monococcum L., Triticum carthlicum Nevski, and Triticum turgidum L.） contained relatively high concentration of the most deficient EAAs （lysine, threonine, and methionine）. Comparing with FAO/WHO amino acid recommendations, the amino acid scores （AAS） of lysine （49.8%）, threonine （70.7%）, and sulfur-containing amino acids （74.8%） were the lowest, which were considered as the main limiting amino acids in WRS. It was observed that the materials with Triticum urartu Turn. （AA） and Aegilops speltoides Tausch. （SS） genomes had relatively high contents of protein and EAA. The contents of protein （16.91%）, phenylalanine （4.78%）, isoleucine （3.53%）, leucine （6.16%）, and valine （4.09%） for the diploid materials were higher than those for the other materials. These results will provide some information for selecting parents in breeding about nutrient quality and utilization of fine gene in wheat.

关键词： wheat-related species protein content amino acid composition amino acid score

Thermal conductivity of GeTe crystals based on machine learning potentials

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Chinese Physics B 2024年第4期33卷 104-107页

作者：张健张昊春李伟峰张刚 School of Energy Science and Engineering Harbin Institute of TechnologyHarbin 150001China Institute of High Performance Computing Agency for ScienceTechnology and ResearchSingapore 138632Singapore School of Physics&State Key Laboratory of Crystal Materials Shandong UniversityJinan 250100China

GeTe has attracted extensive research interest for thermoelectric *** this paper,we first train a neuroevolution potential(NEP)based on a dataset constructed by ab initio molecular dynamics,with the Gaussian approximation potential(GAP)as a *** phonon density of states is then calculated by two machine learning potentials and compared with density functional theory results,with the GAP potential having higher ***,the thermal conductivity of a GeTe crystal at 300 K is calculated by the equilibrium molecular dynamics method using both machine learning potentials,and both of them are in good agreement with the experimental results;however,the calculation speed when using the NEP potential is about 500 times faster than when using the GAP ***,the lattice thermal conductivity in the range of 300 K-600 K is calculated using the NEP *** lattice thermal conductivity decreases as the temperature increases due to the phonon anharmonic *** study provides a theoretical tool for the study of the thermal conductivity of GeTe.

关键词： machine learning potentials thermal conductivity molecular dynamics

Case Report:A case of chylothorax treated curatively with Sapylin, a streptococcus preparation

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2007年第12期8卷 885-887页

作者： XU Zhi-hao WANG chun-fu zhang Yue-qin SHEN Hua-hao XU Feng Department of Respiratory Diseases the Second Affiliated Hospital School of Medicine Zhejiang University Hangzhou 310009 China

Chylothorax is an uncommon disease where fatty fluid accumulates within the chest cavity. Conservative manage- ment, including repeated thoracentesis or pleurodesis, seems to be suitable to most cases. Herein, we present a case of efficacious pleurodesis by intrapleural injection of Sapylin, a streptococcus preparation, for the treatment of chylothorax. A 52-year-old non-smoking female farmer was diagnosed as idiopathic chylothorax after we ruled out possible causes including chest trauma, lymphoma, lung cancer, filariasis, tuberculosis, and etc. Two-time intra-thoracic injection of 3 Klinische Einheit (KE) Sapylin achieved rapid and effective control of chylothorax with no severe side effects. Sapylin may facilitate pleurodesis by producing a strong inflammatory response.

关键词： Chylothorax Sapylin Streptococcus preparation

Microvessel density at different levels of normal or injured bile duct in dogs and its surgical implications

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Hepatobiliary & Pancreatic Diseases International 2011年第1期10卷 83-87页

作者： Lin Geng,Ding Luo,hao-chun zhang,Liang-Song Zhao and De-Ke Qing Department of Hepatobiliary Surgery,Kunming General Hospital of PLA,Kunming 650032,China Department of Hepatobiliary Surgery Kunming General Hospital of PLA Kunming 650032 China

BACKGROUND:Ischemic recurrent stricture after surgical repair for iatrogenic bile duct injury(BDI)remains a challenge in clinical *** present study was designed to investigate whether ischemia is universal and of varied severity at different levels of the proximal bile duct after BDI. METHODS:A total of 30 beagle dogs were randomly divided into control,BDI,and BDI-repaired *** BDI animal model was established based on the classic pattern of laparoscopic cholecystectomy-related *** animals were sacrificed on postoperative day 15,and bile duct tissue was harvested to assess microvessel density(MVD)at selected levels of the normal,post-BDI and BDI-repaired bile duct with the CD34 immunohistochemistry technique. RESULTS:In the control group,MVD at level H(high level) was remarkably higher than that at level L(low level).No significant difference was found between MVDs at levels H and M(middle level),as well as at levels M and ***, the tendency was noted that the closer the level to the hilus, the greater the MVD at that *** both the BDI and BDI-repaired groups,MVDs at level H were generally greater than those at level L,despite the unremarkable differences between MVDs at neighboring *** these two groups,a similar tendency of MVD distribution to that in the control group was found;the closer the level to the injury site,the lower was the MVD at that ***,compared with the MDVs at the levels M and L in the control group,MVDs at the corresponding levels in the BDI and BDI-repaired groups were all remarkably reduced(P<0.05).In addition,MVDs at all three levels in the BDI group significantly declined further after BDI ***:After BDI,universal ischemic damage in the injured proximal bile duct develops close to the injury site, while close to the hilus,ischemia is relatively *** hepaticojejunostomy,rather than low biloenterostomy or end-to-end duct anastomosis,should be recommended for BDI *** care

关键词： microvessel density bile duct injury laparoscopic cholecystectomy ischemia reconstruction

Preparation of Low Ratio Magnesium Ccement by Acid Leaching Treatment of Boron Mud

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Journal of Wuhan University of Technology(Materials Science) 2025年第1期40卷 120-129页

作者： YANG Mei zhang Mingzhe CHEN hao School of Materials Science and Engineering Shenyang Jianzhu UniversityShenyang 110168China School of Physical Science and Technology Shenyang Normal UniversityShenyang 110168China

The effects of liquid-solid ratio and reaction time on the leaching rate of magnesium at room temperature were investigated,as well as the effects of the molar ratio of MgO/MgCl_(2),the amount of water added,and the amount of acid-impregnated slag dosed on the compressive strength and water resistance of *** results showed that the magnesium element in the boron mud could be maximally leached under the conditions of 1:1 concentration of hydrochloric acid at room temperature,liquid-solid ratio of 2.5 mL·g^(-1),and reaction time of 5 h,and the main products were amorphous SiO_(2) as well as a small amount of magnesium olivine which had not been completely *** LR-MOC prepared using the acid-soaked mixture could reach a softening coefficient of 0.85 for 28 d of water immersion when the molar ratio of MgO/MgCl_(2) was 2.2,the amount of water added was 0 g,and the acid-soaked slag dosing was 40 wt%,which also led to an appreciable late-strength,with an increase of 19.4%in compressive strength at 28 d compared to that at 7 *** previous studies,LR-MOC prepared in this way has a final strength phase that is not the more easily hydrolysed 3-phase but the lath-like *** this phenomenon,we analyzed the mechanism and found that,during the acid leaching process,a part of amorphous SiO_(2) dissolved in the acid leaching solution formed a silica sol,in which Mg^(2+)played a bridging role to make the silica sol more *** the addition and hydrolysis of MgO,the silica sol gel coagulation slows down,providing a capping layer to inhibit the hydrolysis of the 5-phase crystals and providing some strength after *** amorphous SiO_(2) in the other part of the acid-impregnated slag generated M-S-H gel with Mg^(2+)and OH-,which synergised with the dense structure composed of interlocking crystals to improve the water resistance of LR-MOC.

关键词： boron mud magnesium chloride-oxygen cement acid immersion water resistance silica sol

Gradient‑Layered MXene/Hollow Lignin Nanospheres Architecture Design for Flexible and Stretchable Supercapacitors

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Nano-Micro Letters 2025年第2期17卷 447-462页

作者： haonan zhang Cheng hao Tongtong Fu Dian Yu Jane Howe Kaiwen Chen Ning Yan hao Ren Huamin Zhai Jiangsu Provincial Key Lab of Sustainable Pulp and Paper Technology and Biomass Materials NanJing Forestry UniversityNanjing 210037People’s Republic of China Department of Chemical Engineering and Applied Chemistry University of Toronto200 College StreetTorontoON M5S 3E5Canada Department of Materials Science and Engineering University of Toronto184 College StreetTorontoON M5S 3E4Canada College of Materials Science and Engineering Nanjing Forestry UniversityNanjing 210037People’s Republic of China

With the rapid development of flexible wearable electronics,the demand for stretchable energy storage devices has *** this work,a novel gradient-layered architecture was design based on single-pore hollow lignin nanospheres(HLNPs)-intercalated two-dimensional transition metal carbide(Ti_(3)C_(2)T_(x) MXene)for fabricating highly stretchable and durable *** depositing and inserting HLNPs in the MXene layers with a bottom-up decreasing gradient,a multilayered porous MXene structure with smooth ion channels was constructed by reducing the overstacking of MXene ***,the micro-chamber architecture of thin-walled lignin nanospheres effectively extended the contact area between lignin and MXene to improve ion and electron accessibility,thus better utilizing the pseudocapacitive property of *** these strategies effectively enhanced the capacitive performance of the *** addition,HLNPs,which acted as a protective phase for MXene layer,enhanced mechanical properties of the wrinkled stretchable electrodes by releasing stress through slip and deformation during the stretch-release cycling and greatly improved the structural integrity and capacitive stability of the *** electrodes and symmetric flexible all-solid-state supercapacitors capable of enduring 600%uniaxial tensile strain were developed with high specific capacitances of 1273 mF cm^(−2)(241 F g^(−1))and 514 mF cm^(−2)(95 F g^(−1)),***,their capacitances were well preserved after 1000 times of 600%stretch-release *** study showcased new possibilities of incorporating biobased lignin nanospheres in energy storage devices to fabricate stretchable devices leveraging synergies among various two-dimensional nanomaterials.

关键词： Hollow lignin nanospheres MXene Gradient-layered architecture Wrinkled electrodes Stretchable supercapacitors

Utility of Tissue Similarity Maps Based on Relative Cerebral Blood Volume for Grading Gliomas as Validated by Histological Results

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Chinese Medical Journal 2015年第15期128卷 2112-2114页

作者： Su Hu Xi-Ming Wang Yi-Xing Yu Ling Yang Mo Zhu Guang-Yu hao Jing zhang chun-Hong Hu Department of Radiology First Affiliated Hospital of Soochow University Suzhou Jiangsu 215006 China

INTRODUCTION Gliomas are the most common primary brain *** gliomas is of significant clinical importance because treatment plans vary between high-and low-grade *** grades of gliomas are closely related to microvasculature. Magnetic resonance （MR） perfusion-weighted imaging （PWI） is a technique to quantitatively evaluate tumor microenvironments by measuring cerebral blood volume （CBV）.

关键词： Blood Volume Glioma Perfusion Imaging Neoplasm Grading