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Ecological Economy 2007年第2期3卷 202-208页

作者： Lu zi Zhou Yingzi han Bing College of Resources and Environment Science Hebei Normal UniversityShijiazhuang 050016P.R.China

Entrusted to by Shijiazhuang municipal Party committee and government, Shanghai Tongji University fin- ished “The General Planning of Ecological Development Project of Hutuo River in Shijiazhuang City”. It aims to build Hutuo River into a wind-breaking and sand-fixing barrier and ecological protect district in the north of Shijiazhuang based on the recovery of natural ecology to improve the environment of Shijiazhuang city. It also intends to develop the district lightly and build it into a nature beauty spot and big park. After the construction for several years, the general environment of this district has been greatly improved. But during the development, the man-made landscapes are highlighted excessively, which deviates from the construction of nature landscape. The currency of constructing big leisure park gradually comes into being, so the recovery of nature ecological is slow. So, this paper intends to make the orientation to ecological development of Hutuo River in Shijiazhuang city and puts forward the community participation to promote the future development of ecotourism in Shijiazhuang.

关键词： Ecological development Orientation Community participation Hutuo River in Shijiazhuang City

Optimal approach for total endoscopic discectomy and its effect on lumbar and leg function in patients with disc herniation

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World Journal of Clinical Cases 2022年第35期10卷 12928-12935页

作者： zi-han Zhang Qian Du Fu-Jun Wu Wen-Bo Liao Department of Orthopaedics Affiliated Hospital of Zunyi Medical UniversityZunyi 563003Guizhou ProvinceChina Department of Orthopaedics The Second Affiliated Hospital of Zunyi Medical UniversityZunyi 563000Guizhou ProvinceChina

BACKGROUND Disc herniation(DH)is a fragment of the disc nucleus that is pushed out of the annulus into the spinal canal due to a tear or rupture in the *** is a common cause of lumbar and leg *** advancements have been made to determine the cause of DH and to ensure accurate diagnosis,imaging,and treatment of this *** endoscopic discectomy is an alternative surgical technique that is less *** To study the optimal approach for a total endoscopic discectomy and its influence on lumbar and leg function in DH *** This prospective study enrolled 120 patients with lumbar DH who were treated in our hospital from February 2018 to January *** patients were randomly divided into the following two groups:The observation group,comprising 62 patients who underwent surgery using the interlaminar approach,and the control group,comprising 58 patients who were operated through the foramina *** treatment effects,perioperative indicators,functional recovery,pain,and quality of life were compared between the two *** The treatment effect in the observation group(93.55%)was significantly better than that in the control group(77.59%).There was no difference in the operative time and intraoperative blood loss amount between the two groups(P>0.05).The hospitalization time of the observation group(4.34±1.33 d)was significantly shorter than that of the control group(5.38±1.57 days)(Phan in the control *** visual analog scale scores of the lower back and legs of the two groups were significantly reduced after treatment,but scores were lower in the observation group(2.18±0.88 in the lower back and 1.42±0.50 in the leg)than in the control group(3.53±0.50 in the lower back and 2.21±0.52 in the leg).A short form of the Arthritis

关键词： Disc herniation Total endoscopic discectomy Interlaminar approach Transforaminal approach Quality of life Treatment effect

Silodosin is effective for treatment of LUTS in men wii BPH： a systematic review

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Asian Journal of Andrology 2013年第1期15卷 121-128页

作者： Hui Ding Wan Du zi-Zhen Hou han-Zhang Wang Zhi-Ping Wang Institute of Urology Key Laboratory of Diseases of Urological System Gansu Province Gansu Nephro-Urological Clinical Center The Second Hospital of Lanzhou University Lanzhou China 0tolaryngological Department The Second Hospital of Lanzhou University Lanzhou China The Medical College of Shandong University Jinan China

The aim of this study was to systematically review the evidence on the efficacy and safety of silodosin treatments on lower urinary tract symptoms （LUTS） in men with benign prostatic hyperplasia （BPH） from randomized controlled trials. We searched PubMed （1966- December 2011）, Embase （1974-December 2011） and the Cochrane Library Database （2011, Issue 12）. The assessed outcome measures were the change from baseline for the International Prostate Symptom Score （IPSS）, quality of life （QoL） score, peak urine maximum flow rate （Qmax）, QoL related to urinary symptoms and adverse effects. Two authors independently assessed the study quality and extracted data. All data were analysed using RevMan 5.1. The meta-analysis included four randomized controlled trials with a total of 2504 patients. The study durations were each 12 weeks. At the follow-up end points, the pooled results showed that the change from baseline for the silodosin group was significantly higher than the placebo group for the IPSS, QoL score and Qmax（mean difference （MD）=-2.78, P〈O.O0001; MD=-O.42, P--O.O04; MD= 1.17, P〈***,respectively） and patients felt more satisfied with QoL related to urinary symptoms in the silodosin group than the placebo group. Ejaculation disorder was the most commonly reported adverse effect. The pooled results also showed that the silodosin group was superior to the 0.2 mg tamsulosin group with respect to the IPSS and QoL score （IPSS： MD=- 1.14, P=O.02; QoL score： MD=-0.26, P=O.02） and inferior to the 0.2 mg tamsulosin group with respect to Qmax （MD=-0.85, P=O.01）. In contrast, there was no significant difference in the incidence of ejaculation disorder and dizziness between the silodosin and 0.2 mg tamsulosin groups. The current meta-analysis suggested that silodosin is an effective therapy for LUTS in men with BPH and is not inferior to 0.2 mg tamsulosin.

关键词： benign prostatic hyperplasia (BPH) KMD-3213 lower urinary tract symptoms (LUTS) silodosin tamsulosin systematic review meta-analysis

Abnormal Twinning Behavior and Constitutive Modeling of a Fine-Grained Extruded Mg-8.0Al-0.1Mn-2.0Ca Alloy under High-Speed Impact along Various Directions

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Acta Metallurgica Sinica(English Letters) 2023年第2期36卷 281-294页

作者： Fei-Yang Chen Peng-Cheng Guo zi-han Jiang Xiao Liu Tie-Jun Song Chao Xie College of Mechanical and Electrical Engineering Central South University of Forestry and TechnologyChangsha410004China College of Mechanical Engineering and Mechanics Ningbo UniversityNingbo315211China College of Mechanical Engineering Xiangtan UniversityXiangtan411105China College of Material Science and Engineering Hunan University of Science and TechnologyXiangtan411201China

To understand the mechanical and twinning behaviors of a fine-grained extruded Mg-8.0Al-0.1Mn-2.0Ca alloy under high-speed impact,impact tests were carried out using a split Hopkinson pressure bar,and microstructures at strains of 0.05,0.10 and 0.20 were obtained using a series of stop rings manufactured by high-strength *** stress response and twinning behavior are closely related to loading direction and applied strain *** true stress-true strain curves are s-shaped in extrusion direction(ED)and c-shaped in transverse direction(TD),showing apparent anisotropy,while the yield strength is insensitive to loading *** identical strain-rate sensitivity is demonstrated by the stress in ED and ***,de-twinning is apparent as the applied strain increases to 0.20,and it is enhanced with increasing the applied strain *** contrast,the twin density in ED samples is clearly higher than that in TD *** modifying the terms of strain hardening and strain rate hardening in the classical JC model,an optimized model is built,which can accurately predict the stress response behavior of the studied alloy under high-speed impact along ED and *** correlation coefficient(R)and average absolute relative error(AARE)are 98.63%and 0.0199 for ED,and 96.88%and 0.0202 for TD,respectively.

关键词： High-speed impact Magnesium alloy Twinning behavior Constitutive model Anisotropy

Asymptotic Inference in the Random Coefficient Autoregressive Model with Time-functional Variance Noises

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Acta Mathematicae Applicatae Sinica 2024年第2期40卷 320-346页

作者： En-wen ZHU zi-wei DENG han-jun ZhanG Jun CAO Xiao-hui LIU Department of Mathematics and Statistics Changsha University of Science and TechnologyChangsha 410114China School of Mathematics and Computational Science Xiangtan UniversityXiangtan 411105China School of Statistics and Data Science and Key Laboratory of Data Science in Finance and EconomicsJiangxi University of Finance and EconomicsNanchang 330013China

This paper considers the random coefficient autoregressive model with time-functional variance noises,hereafter the RCA-TFV *** first establish the consistency and asymptotic normality of the conditional least squares estimator for the constant *** semiparametric least squares estimator for the variance of the random coefficient and the nonparametric estimator for the variance function are constructed,and their asymptotic results are reported.A simulation study is presented along with an analysis of real data to assess the performance of our method in finite samples.

关键词： random coefficient autoregressive model time-functional variance conditional least squares semiparametric least squares

Building on the backbone of CD47-based therapy in cancer:Combination strategies,mechanisms,and future perspectives

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Acta Pharmaceutica Sinica B 2023年第4期13卷 1467-1487页

作者： zi-han Ye Wei-Bang Yu Mu-Yang Huang Jun Chen Jin-Jian Lu State Key Laboratory of Quality Research in Chinese Medicine Institute of Chinese Medical SciencesUniversity of MacaoMacao 999078China Zhongshan School of Medicine Sun Yat-sen UniversityGuangzhou 510080China Department of Pharmaceutical Sciences Faculty of Health SciencesUniversity of MacaoMacao 999078China MoE Frontiers Science Center for Precision Oncology University of MacaoMacao 999078China Guangdong-Hong Kong-Macao Joint Lab on Chinese Medicine and Immune Disease Research University of MacaoMacao 999078China

Described as a“don't eat me”signal,CD47 becomes a vital immune checkpoint in *** interaction with signal regulatory protein alpha(SIRPa)prevents macrophage *** recent years,a growing body of evidences have unveiled that CD47-based combination therapy exhibits a superior anti-cancer *** clinical trials about CD47 have adopted the regimen of collaborating with other therapies or developing CD47-directed bispecific antibodies,indicating the combination strategy as a general trend of the *** this review,clinical and preclinical cases about the current combination strategies targeting CD47 are collected,their underlying mechanisms of action are discussed,and ideas from future perspectives are shared.

关键词： CD47 Combination strategies Bispecific antibodies Clinical data Preclinical data Cancer Mechanisms Future perspectives

Evaluating and correcting short-term clock drift in data from temporary seismic deployments

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Earthquake Research Advances 2023年第2期3卷 24-38页

作者： Aqeel Abbas Gaohua Zhu Jinping zi han Chen Hongfeng Yang Earth and Environmental Sciences Programme The Chinese University of Hong KongShatinHong KongChina CAS Key Laboratory of Marine Geology and Environment Center for Ocean Mega-ScienceInstitute of OceanologyChinese Academy of SciencesQingdao266071China Shenzhen Research Institute The Chinese University of Hong KongShenzhenChina

Temporary seismic network deployments often suffer from incorrect timing records and thus pose a challenge to fully utilize the valuable *** inspect and fix such time problems,the ambient noise cross-correlation function(NCCF)has been widely adopted by using daily ***,it is still challenging to detect the shortterm clock drift and overcome the influence of local noise on *** address these challenges,we conduct a study on two temporary datasets,including an ocean-bottom-seismometer(OBS)dataset from the southern Mariana subduction zone and a dataset from a temporary dense network from the Weiyuan shale gas field,Sichuan,*** first inspect the teleseismic and local event waveforms to evaluate the overall clock drift and data quality for both *** the OBS dataset,NCCF using different time segments(3,6,and 12-h)beside daily waveforms data is computed to select the data length with optimal detection ***,the 6-h segment is the preferred choice with high detection efficiency and low noise *** the land dataset,higher drift detection is achieved by NCCF using the daily long ***,we find that NCCF symmetry on the dense array is highly influenced by localized intense noise for large interstation distances(>1 km)but is well preserved for short interstation *** results have shown that the use of different segments of daily waveform data in the OBS dataset,and the careful selection of interstation distances in the land dataset substantially improved the NCCF *** the clock drifts in both datasets are successfully corrected and verified with waveforms and *** newly developed strategies using short-segment NCCF help to overcome the existing issues to correct the clock drift of seismic data.

关键词： OBS and Land dataset Short-period clock drift Waveforms inspection Ambient noise cross-correlation

Comparative study on the passivation layers of copper sulphide minerals during bioleaching

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International Journal of Minerals,Metallurgy and Materials 2012年第10期19卷 886-892页

作者： Kai-bin Fu Hai Lin Xiao-lan Mo han Wang Hong-wei Wen zi-long Wen School of Civil and Environmental Engineering University of Science and Technology Beijing Beijing 100083 China Key Laboratory of Solid Waste Treatment and Resource Recycle (Ministry of Education) Southwest University of Science and Technology Mianyang 621010 China

The bioleaching of copper sulphide minerals was investigated by using A. ferrooxidans ATF6. The result shows the preferential order of the minerals bioleaching as djurleite〉bomite〉pyritic chalcopyrite〉covellite〉porphyry chalcopyfite. The residues were characterized by X-ray diffraction （XRD） and scanning electron microscopy （SEM）. It is indicated that jarosite may not be responsible for hindered disso- lution. The elemental sulfur layer on the surface of pyritic chalcopyrite residues is cracked. The compact surface layer of porphyry chalcopy- rite may strongly hinder copper extraction. X-ray photoelectron spectroscopy （XPS） further confirms that the passivation layers of covellite, pyritic chalcopyrite, and porphyry chalcopyrite are copper-depleted sulphide Cu4S11, S8, and copper-rich iron-deficient polysulphide CtuFe2S9, resoectivelv. The ability of these oassivation layers was found as Cu4Fe2S9〉Cu4S11〉S8〉iarosite.

关键词： copper ore treatment copper sulphide bioleaching passivation

Room-temperature and high-temperature magnetic permeability of Co-doped nanocrystalline alloys

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Rare Metals 2018年第5期37卷 427-432页

作者： Bin Fu Jie han Sheng-Qi Guo Zhi Wang Pan Zhang zi-Jiao Pan Qiang Xu Tianjin Key Laboratory for Photoelectric Materials and Devices School of Materials Science and Engineering Tianjin University of Technology College of Science Tianjin University of Technology School of Science Tianjin University School of Materials Science and Engineering Tianjin University of Technology

Influence of composition and annealing temperature on structure and magnetic properties of amorphous and nanocrystalline Fe78.4-xCoxSi9B9Nb2.6Cu1 （x=27.4, 40.0, 51.0, 78.4） alloys was investigated by X-ray diffraction （XRD） and the temperature dependence of permeability. According to the initial crystallization temperature （Tx1） from differential scanning calorimetry （DSC） curves of as-quenched amorphous alloys, 490-700 ℃ isothermal annealing was carded out to obtain the characteristic nanocrystalline structure. Furthermore, the soft magnetic properties were measured by temperature evolution of magnetic permeability to obtain the correlation between Co content, annealing temperature and magnetic permeability. The results show that, on the one hand, the annealing temperature exerts a significant effect on phase structure and initial permeability （μi）. The higher-temperature （from 550 to 610 ℃） annealed Co content nanocrystalline samples can remain higher μi at elevated temperature. On the other hand, partial substitution Fe by Co can improve the high-temperature magnetic stability;however, the room-temperature permeability of higher Co content alloys decreases obviously at the same time. This phenomenon was analyzed from the viewpoint of the saturation magnetic induction （Bs）, magnetic anisotropy （〈K〉） and magnetostriction （λs）.

关键词： Nanocrystalline alloys High-temperature soft magnetic properties Initial permeability FeCo-based alloy

Transient electromagnetically induced transparency spectroscopy of^(87)Rb atoms in buffer gas

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Chinese Physics B 2022年第7期31卷 235-240页

作者： zi-Shan Xu han-Mu Wang Zeng-Li Ba Hong-Ping Liu State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics Wuhan Institute of Physics and MathematicsInnovation Academy for Precision Measurement Science and TechnologyChinese Academy of SciencesWuhan 430071China University of Chinese Academy of Sciences Beijing 100049China School of Physical Science University of Science and Technology of ChinaHefei 230026China

We study the transient response dynamics of^(87)Rb atomic vapor buffered in 8 torr Ne gas through an electromagnetically induced transparency configured inΛ-***,the temporal transmission spectra versus probe detuning by switching on and off the coupling one show complex *** transmitted probe light intensity drops to a minimum value when the coupling light turns off,showing a strong *** at the moment of turning on the coupling light at a subsequent delayed time,the atomic medium shows a fast transient *** account for the transient switching feature,in the time-dependent optical Bloch equation,we must take the transverse relaxation dephasing process of atomic vapor into account,as well as the fluorescence relaxation along with the optical *** work supplies a technique to quantify the transverse relaxation time scale and to sensitively monitor its variation along the environment by observing the transient dynamics of coherent medium,which is helpful in characterizing the coherent feature of the atomic medium.

关键词： electromagnetically induced transparency rubidium atom transverse relaxation rate