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A Primary Study on Mechanical Properties of Heat-Treated Wood via in-situ Synthesis of Calcium Carbonate

Journal of Renewable Materials 2023年第1期11卷 435-451页

作者： Dianen Liang Zhenhao ding Qilin Yan Redžo Hasanagić Leila Fathi zi Yang Longhao Li Jianbo Wang Houhua Luo Qian Wang Demiao Chu Key Lab of State Forest and Grassland Administration on“Wood Quality Improvement&High Efficient Utilization” School of Forestry&Landscape ArchitectureAnhui Agricultural UniversityHefeiChina Department of Wood Science and Technology Faculty of Technical EngineeringUniversity of BihaćBihaćBosnia and Herzegovina Department of Natural Resources and Earth Science Shahrekord UniversityShahrekordIran

This study aims to improve the value of fast-growing wood and extend the heat-treated wood utilization using inorganic calcium carbonate(CaCO_(3))crystals via an in-situ synthesis ***_(2)and Na 2CO_(3)solutions with a concentration ratio of 1:1 were successively introduced into the thermally modified poplar wood obtained by steam heat treatment(HT)at 200℃for 1.5 and 3 h,resulting in the in-situ synthesis of CaCO_(3)crystals inside the heat-treated *** filling effect was best at the concentration of 1.2 mol/***_(3)was uniformly distributed in the cell cavities of the heat-treated wood,and some of the crystals were embedded in the fissures of the wood cell *** morphology of CaCO_(3)crystals was mainly spherical and rhombic *** main types of CaCO_(3)crystals were calcite,vaterite,and *** HT of poplar wood at 200℃resulted in degrading the chemical components of the wood cell *** degradation led to reduced wood mechanical properties,including the surface hardness(HD),modulus of rupture(MOR),and modulus of elasticity(MOE).After CaCO_(3)was in-situ synthesized in the heat-treated wood,the HD increased by 18.36%and 16.35%,and MOR increased by 14.64%and 8.89%,*** of the CaCO_(3)synthesization,the char residue of the 200℃heat-treated wood samples increased by 9.31%and the maximum weight loss rate decreased by 19.80%,indicating that the filling with CaCO_(3)cannot only improve the mechanical properties of the heat-treated wood but also effectively enhance its thermal stability.

关键词： Heat treatment poplar wood calcium carbonate in-situ synthesis reinforcement

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Mutant CARD10 in a family with progressive immunodeficiency and autoimmunity

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Cellular & Molecular Immunology 2020年第7期17卷 782-784页

作者： Dan-hui Yang Ting Guo Zhuang-zhuang Yuan Cheng Lei Shui-zi ding Yi-feng Yang Zhi-ping Tan Hong Luo Department of Respiratory Medicine The Second Xiangya HospitalCentral South UniversityChangshaHunan 410011China Research Unit of Respiratory Disease Central South UniversityChangshaHunan 410011China Hunan Diagnosis and Treatment Center of Respiratory Disease ChangshaHunan 410011China School of Life Sciences Central South UniversityChangshaHunan 410013China Clinical Center for Gene Diagnosis and Therapy Department of Cardiovascular SurgeryThe Second Xiangya Hospital of Central South UniversityChangshaHunan 410011China

Autoimmunity and immunodeficiency were previously considered to be mutually exclusive ***,an increased understanding of the complex immune regulatory systems and signaling mechanisms,coupled with the application of genetic analysis,has demonstrated the complex relationships between the two kinds of diseases.1 In recent years,several mild forms of primary immunodeficiencies have been discovered,presenting with opportunistic infections overlapping autoimmunity and/or allergy late in life.

关键词： conditions. mutually mild

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Nucleonic ~1S_0 Superfluidity Induced by a Soft Pion in Neutron Star Matter with Antikaon Condensations

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Chinese Physics Letters 2019年第6期36卷 12-16页

作者： Yan Xu Qi-Jun Zhi Yi-Bo Wang Xiu-Lin Huang Wen-Bo ding zi Yu Cheng-Zhi Liu Changchun Observatory National Astronomical Observatories Chinese Academy of Sciences Guizhou Provincial Key Laboratory of Radio Astronomy and Data Processing College of Mathematics and Physics Bohai University College of Science Nanjing Forestry University

The nucleonic ~1S_0 superfluidity is investigated by solving the gap equation for the Reid soft-core potential as the nucleon-nucleon interaction in neutron star(NS) matter which is considered to be made up of p, e, μ and condensed antikaon matter. We mainly study the influence of the soft pion-induced potential on the nucleonic^1S_0 pairing gaps in the above NS matter. It is found that the intensities of the nucleonic ~1S_0 pairing gaps including the soft pion-induced potential are smaller than those calculated in the case of not including the soft pion-induced potential. Furthermore, the nucleonic ~1S_0 pairing gaps with the soft pion-induced potential fall into decline with the deepening of the optical potential of antikaons in the above NS matter, whereas they increase with the parameter η for the fixed optical potential of antikaons. Due to the appearance of the soft pion-induced potential, the maximum values of nucleonic ~1S_0 pairing gaps at parameter η = 0.20,0.55 are suppressed by1.7%-6.8% with respect to the case without soft pion-induced potential in the above NS matter.

关键词： neutron star(NS) Antikaon Condensations Soft Pion

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Climate services for addressing climate change: Indication of a climate livable city in China

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Advances in Climate Change Research 2021年第5期12卷 744-751页

作者： WANG Yu-Jie CHEN Yu Chris HEWITT ding Wei-Hua SONG Lian-Chun AI Wan-Xiu HAN Zhen-Yu LI Xiu-Cang HUANG zi-Li Key Laboratory of Meteorological Disaster Ministry of Education/International Joint Research Laboratory on Climate and Environment Change/Collaborative Innovation Center on Forecast and Evaluation of Meteorological DisastersNanjing University of Information Science and TechnologyNanjing210044China School of Atmospheric Sciences Nanjing University of Information Science and TechnologyNanjing210044China Laboratory for Climate Change National Climate CenterChina Meteorological AdministrationBeijing100081China Met Office ExeterEX13BPUK University of Southern Queensland ToowoombaQld4350Australia Jiande Meteorological Service Zhejiang Meteorological BureauHangzhou311600China

China, like many countries, is under great pressure to reduce climate change and adapt to current situations while simultaneously undertaking economic development and transformation. This study takes advantage of climate opportunities and provides a new concept and mode of urban climate services in order to address climate change. Eighteen indicators based on climate and climate-related variables were used to provide an assessment, in the form of an index, of how livable a city is depending on prevailing climatic conditions. The resulting index can also be used to investigate how recent and future changes in the climatic conditions could affect livability. All Chinese cities and regions share the common goals of promoting low-carbon development, improving resilience against climate change, and integrating economic growth with climate actions. Climate services have been developed in China to provide decision-makers this measure of livability. Such a move facilitates sustainable development alongside economic growth by aiding government efforts in climate adaptation and low-carbon development. Our approach represents multidisciplinary and demand-driven research on adaptation to and the impacts of regional climate change, thereby transforming climate science into a climate service and ensuring that climate information can be provided in a scientific, practical, and customized way for policy-makers. The outputs can be used locally to take concrete climate actions and integrate climate services into decision-making processes.

关键词： Climate services Addressing climate change Climate livable city China

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Identification and Rutherford Backscattering Measurement of MeV Carbon Cluster Ions

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Chinese Physics Letters 1997年第9期14卷 712-714页

作者： WANG Xue-mei LU Xi-ting XIA Zong-huang SHEN ding-yu ZHENG Tao ZHAO Qiang ZHAO zi-qiang Department of Technicah Physics and Institute of Heavy Ion Physics Peking UniversityBeijing 100871

The MeV carbon cluster ions provided by 1.7 MV tandem accelerator were identified and Rutherford backscattering spectra of MeV carbon cluster ions on the gold film were measured with silicon surface barrier detector.

关键词： cluster film backscattering

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Effects of confining pressure on deformation failure behavior of jointed rock

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Journal of Central South University 2022年第4期29卷 1305-1319页

作者： CHEN Miao ZANG Chuan-wei ding zi-wei ZHOU Guang-lei JIANG Bang-you ZHANG Guang-chao ZHANG Cheng-peng Key Laboratory of Mining Disaster Prevention and Control School of Energy and Mining EngineeringShandong University of Science and TechnologyQingdao 266590China College of Energy Engineering Xi’an University of Science and TechnologyXi’an 710054China School of Resources and Safety Engineering Chongqing UniversityChongqing 400044China

For a deeper understanding of the deformation failure behavior of jointed rock, numerical compression simulations are carried out on a rock specimen containing non-persistent joints under confining pressure with the bondedparticle model. The microscopic parameters which can reflect the macroscopic mechanical properties and failure behavior of artificial jointed specimens are firstly calibrated. Then, the influence of joint inclination and confining pressure on stress-strain curves, crack patterns, and contact force distributions of jointed rock are investigated. The simulation results show that both the compressive strength and elastic modulus of the specimens increase with increasing confining pressure, and these two mechanical parameters decrease first and then increase with the increase of joints inclination. The sensitivity of strength and elastic modulus to confining pressure is not the same in different joints inclinations, which has the least impact on specimens with α=90°. Under low confining pressure, the failure modes are controlled by the joint inclination. As the confining pressure increased, the initiation and propagation of tensile crack are gradually inhibited, and the failure mode is transferred from tensile failure to shear-compression failure. Finally, the reinforcement effect of prestressed bolt support on engineering fractured rock mass is discussed.

关键词： stability of surrounding rock non-persistent joints confining pressure cracking process discrete element method(DEM)

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Differences in Liver Injury and Trophoblastic Mitochondrial Damage in Different Preeclampsia-like Mouse Models

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Chinese Medical Journal 2015年第12期128卷 1627-1635页

作者： Yi-Wei Han zi Yang Xiao-Yan ding Huan Yu Department of Obstetrics and Gynecology Peking University Third Hospital Beijing 100191 China

Background：Preeclampsia is a multifactorial disease during *** lipid metabolism may be related to some *** investigated the relationship between triglycerides （TGs） and liver injury in different preeclampsia-like mouse models and their potential common ***：Preeclampsia-like models （Nw-nitro-L-arginine-methyl ester [L-NAME],lipopolysaccharide [LPS],apolipoprotein C-Ⅲ [Apo] transgnic mice ＋ L-NAME,β2 glycoprotein Ⅰ [βGPI]） were used in four experimental groups：L-NAME （LN）,LPS,Apo-LN and βGPI,respectively,and controls received saline （LN-C,LPS-C,Apo-C,βGPI-C）.The first three models were established in preimplantation （PI）,early-,mid-and late-gestation （EG,MG and LG）.βGPI and controls were injected before *** arterial pressure （MAP）,24-hour urine protein,placental and fetal weight,serum TGs,total cholesterol （TC） and pathologic liver and trophocyte changes were ***：MAP and proteinuria were significantly increased in the experimental *** and fetal weight in PI,EP and MP subgroups were significantly lower than *** TGs significantly increased in most groups but *** was not different between experimental and control *** hepatic cell necrosis was observed in PI,EG,MG in LN,Apo-LN and βGPI,but no morphologic changes were observed in the LPS *** trophoblastic mitochondrial damage was observed in every experimental ***：Earlier preeclampsia onset causes a higher MAP and urine protein level,and more severe placental and fetal ***-like models generated by varied means lead to different changes in lipid metabolism and associated with liver *** mitochondrial damage may be the common terminal pathway in different preeclampsia-like models.

关键词： Liver Mitochondria Preeclampsia Triglyceride Trophoblast

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Can albumin administration relieve lung injury in trauma/hemorrhagic shock?

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World Journal of Gastroenterology 2006年第42期12卷 6884-6888页

作者： Zuo-Bing Chen zi-Wei Wang Chen-Yan ding Jian-Hua Yan Yuan Gao Yun Zhang Lin-Mei Ni Yong-Qing Zhou Department of Emergency Surgery First Affiliated Hospital College of Medicine Zhejiang University Hangzhou 310003 Zhejiang Province China

AIM: To study the effect of albumin administration on lung injury in trauma/hemorrhagic shock (T/HS). METHODS: Sixty experimental animals were randomly divided into three groups: rats undergoing laparotomy without shock (T/SS); rats with T/HS and resuscitation with blood plus twice the volume of shed blood as Ringer’s lactate (RL), and rats with T/HS and resuscitation with blood plus additional 3 mL of 50 g/L human albumin. Expression of polymorphonuclear neutrophil (PMN) CD11b/CD18, intercellular adhesion molecule-1 (ICAM-1) of jugular vein blood and the severity of lung injuries [determined mainly by measuring activity of lung tissue myeloperoxidase (MPO) and lung injury score (LIS)] were measured after a 3-h recovery period. RESULTS: All three groups showed a significant difference in the expressions of CD11b/CD18, ICAM-1, and severity of lung injury. The expressions of CD11b/ CD18 in T/SS group, T/HS + RL group, T/HS + albumin group were 17.76% ± 2.11%, 31.25% ± 3.48%, 20.36% ± 3.21%, respectively (F = 6.25, P < 0.05). The expressions of ICAM-1 (U/mL) in T/SS group, T/ HS + RL group, T/HS + albumin group were 258.76 ± 98.23, 356.23 ± 65.6, 301.01 ± 63.21, respectively (F = 5.86, P < 0.05). The expressions of MPO (U/g) in T/SS group, T/HS + RL group, T/HS + albumin group were 2.53 ± 0.11, 4.63 ± 1.31, 4.26 ± 1.12, respectively (F = 6.26, P < 0.05). Moreover, LIS in T/HS + RL group, T/HS + albumin group was 2.62 ± 0.23, 1.25 ± 0.24, respectively. The expressions of CD11b/CD18, ICAM-1 and MPO in T/HS + RL group were significantly increased compared to T/SS group (P = 0.025, P = 0.036, P = 0.028,respectively). However, administration of 3 mL of 50 g/L albumin significantly down-regulated the expressions of CD11b/CD18, ICAM-1 and lung injury index (MPO and LIS) when compared with the T/HS + RL rats (P = 0.035, P = 0.046, P = 0.038, P = 0.012, respectively). CONCLUSION: The infusion of albumin during resuscitation period can protect lung from injury and decrease the e

关键词： Albumin CD11b/CD18 Intercellular adhesion molecule-1 Lung injury Trauma/hemorrhagic shock

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An alternative surgical technique for varicoceles:a preliminary experience of the microsurgical spermatic(distal end)-inferior or superficial epigastric vein anastomosis in symptomatic varicoceles associated with perineal pain

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Asian Journal of Andrology 2022年第6期24卷 624-627页

作者： zi Wan Hai-Ming Cao Bi-Cheng Yang Yong Gao Li ding Peng Luo Guang-Wen Yang Lin Ma Chun-Hua Deng The Andrology Department The First Affiliated HospitalSun Yat-sen UniversityGuangzhou 510080China The Andrology Department The Reproductive Medicine CenterThe Seventh Affiliated HospitalSun Yat-sen UniversityShenzhen 518107China The Reproductive Medicine Center The Key Laboratory for Reproductive Medicine of Guangdong ProvinceThe First Affiliated HospitalSun Yat-sen UniversityGuangzhou 510080China The Pathology Department The First Affiliated HospitalSun Yat-sen UniversityGuangzhou 510080China The Urology Department Tongren Municipal People's HospitalTongren 554399China The Reproductive Medicine Center The Seventh Affiliated HospitalSun Yat-sen UniversityShenzhen 518107China

Many therapies are effective in treating varicoceles,including dilation of the pampiniform plexus in *** most common method of treatment is *** aimed to assess an alternative technique(microsurgical spermatic[distal end]-superficial or inferior epigastric vein anastomosis)that preserves the normal blood flow pattern for varicocele *** retrospectively analyzed 27 men with varicocele between October 2019 and July *** patients underwent microsurgical spermatic(distal end)-superficial or inferior epigastric vein *** prognosis was reviewed retrospectively with an additional survey conducted 3 months after *** mean±standard deviation of the age was 26.1±7.3 years in patients with microsurgical spermatic(distal end)-superficial or inferior epigastric vein *** maximum diameter of the varicocele vein,perineal pain score,sperm density,and forward movement of sperm improved over 3 months after *** spermatic(distal end)-superficial or inferior epigastric vein anastomosis is a safe and efficient surgical treatment for varicoceles.

关键词： microsurgery pain varicocele vein anastomosis

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The System Dynamics (SD) is used for researching on battle simulation

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Systems Science and Systems Engineering 2000年第3期10卷 367-372页

作者： WANG Ke\|ding,\ HUANG zi\|li Nanjing Engineering Institute, Jiangsu, Nanjing 210007, China

The characteristics of applying System Dynamics (SD) to battle simulation are introduced. With Lanchester Model of the troops recruit and non battle depletion, arms of the services coordinated campaign Lanchester Mod... 详细信息

关键词： battle simulation system dynamics(SD) model

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