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Convenient synthesis of (4R,5R)-4,5-bis(aminomethyl)-2-isopropyl-1,3-dioxolane

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Chinese Chemical Letters 2007年第7期18卷 783-784页

作者： jian jiang De Cai wang Wei Lin Ping Kai Ouyang College of Life Science and Pharmaceutical Engineering Nanjing University of Technology Nanjing 210009 China

A convenient approach for the preparation of （4R,5R）-4,5-bis（aminomethyl）-2-isopropyl-l,3-dioxolane is described. The target compound via two steps is synthesized from diethyl-2,3-O-isobutylidene-D-tartrate, throu... 详细信息

关键词： Heptaplatin Aminomethyl Intermediate Anticancer drug

In situ regulating intimately connected heterostructure by decomposition of solid solution oxides toward high-efficient water oxidation

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Rare Metals 2024年第4期43卷 1557-1569页

作者： Shao-Fei Zhang Xiao-Lu Yin Jin wang jian-Li Kang Tian-Tian Li Jin-Feng Sun Yong-Qiang Meng jian-jiang wang Dian-Long wang Kai-Qiang Qin Hebei Key Laboratory of Flexible Functional Materials/Hebei Key Laboratory of Material Near-Net Forming Technology School of Materials Science and EngineeringHebei University of Science and TechnologyShijiazhuang050018China Key Laboratory of Advanced Ceramics and Machining Technology/Ministry of Education School of Materials Science and EngineeringTianjin UniversityTianjin300072China Electrochemical Engine Center Department of Mechanical EngineeringPennsylvania State UniversityUniversity ParkPA16802USA

Heterogeneous interfaces produced by interdomain interactions on a nanoscale performs a crucial role in boosting the properties of an electrocatalyst toward oxygen evolution reaction(OER)***,a series of dual-phase electrodes with intimately connected heterointerfaces are prepared by in situ decomposing solid solution oxide of Ni_(x)Co_(y)Fe_(100-x-y)O,which grew on Ni foam massively via an ultrafast combustion ***,with high-reaction kinetics caused by the reduction treatment at 450℃,the less electronegative Fe and Co are more oxyphilic than Ni,which facilitated their co-exsolution and formation of CoFe_2O_4/NiO oxide with enriched oxygen *** from the nanoporous framework,heterojunction structure,and oxygen defects,the self-supporting electrodes present rapid charge/mass transmission and provide abundant active sites for *** optimized sample(R-SNCF4.5)shows low overpotentials of 226 and 324 mV at 10 and100 mA·cm^(-2),a small Tafel slope(46.7 mV·dec^(-1)),and excellent *** assembled R-SNCF4.5//Pt/C/NF electrolyzer demonstrates continuous electrolysis over 50 h at a current density of 10 mA·cm^(-2),under 1.51 *** functional theory(DFT)calculations verify that the strong electronic modulation plays a critical part in the CoFe_2O_4/NiO hybrid by lowering the energy barriers for the ratedetermining steps,and Fe sites are the most active OER sites.

关键词： Rapid combustion Decomposition of solid solution oxide Dual-phase heterostructure Oxygen evolution reaction Theoretical calculation

Preparation of micro-nano hollow multiphase ceramic microspheres containing MnFe_2O_4 absorbent by self-reactive quenching method

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Rare Metals 2013年第6期32卷 592-598页

作者： Hong-Fei Lou jian-jiang wang Zhi-Ning Zhao Xu-Dong Cai Yong-Shen Hou Advanced Materials Institute Mechanical Engineering College

Fe–Fe2O3–MnO2–sucrose–epoxy resin and O2 as reaction system and feed gas,separately,were used to prepare micro-nano hollow multiphase ceramic microspheres containing MnFe2O4absorbent by self-reactive quenching method which is integrated with flame jet,selfpropagating high-temperature synthesis(SHS),and rapidly *** morphologies and phase compositions of hollow microspheres were studied by scanning electron microscope(SEM),transmission electron microscope(TEM),X-ray diffraction(XRD),and energy dispersive *** results show that the quenching products are regular spherical substantially with hollow structure,particle size is between few hundreds nanometers and 5 *** compositions are diphase of Fe3O4,Mn3O4,and MnFe2O4,and the spinel soft magnetic ferrite MnFe2O4 with microwave magnetic properties is in *** with each other,burst as well as‘‘refinement’’of agglomerate powders in flame field may be the main reasons for the formation of micro-nano hollow multiphase ceramic microspheres containing MnFeOabsorbent.

关键词： Self-reactive quenching method Micro-nano hollow multiphase ceramic microspheres Collisions and burst Refinement

Review on Intrinsic Electrocatalytic Activity of Transition Metal Nitrides on HER

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Energy Material Advances 2022年第1期2022卷 45-72页

作者： Han-Ming Zhang jian-jiang wang Yongqiang Meng Fushen Lu Muwei Ji Caizhen Zhu jian Xu Jinfeng Sun School of Material Science and Engineering Hebei University of Science and TechnologyShijiazhuangHebei 050018China Hebei Key Laboratory of Flexible Functional Materials ShijiazhuangHebei 0500180China College of Chemistry and Chemical Engineering Shantou UniversityShantouGuangdong 515000China Institute of Low-dimensional Materials Genome Initiative College of Chemistry and Environmental EngineeringShenzhen UniversityShenzhenGuangdong 518060China

Hydrogen energy is considered as an ideal energy with the advantages of green,sustainability,and high energy density,and water splitting is one of the efficient strategies for green hydrogen without carbon *** for cathodic hydrogen evolution reaction(HER),besides the Pt-based electrocatalysts with excellent electrocatalytic activities on HER,transition metal nitrides(TMNs)as cheap and facile-prepared electrocatalysts have shown remarkable electrocatalytic *** of N atom in metal interstitial lattice results in the unique structure of TMN with high electronic conductivity,strong chemical stability,and d-band *** the intrinsic electrocatalytic activities of TMNs are mostly lower than those of Pt,it also attracted much attention to the development of TMN with higher intrinsic activity by electronic structure ***,we review the recent improvement strategies for the intrinsic electrocatalytic activities of TMN catalysts on HER by electronic structure modulation,such as facet,alloying,doping,vacancy,heterostructure,and *** important breakthroughs of TMNs have been made;however,the scale application of TMNs with high activity in commercial water electrolyzer is urgent to *** future development of TMNs is proposed to focus on developing facile synthesis methods,elucidating regulation mechanism and catalytic mechanism,and enhancing activity and stability.

关键词： breakthrough structure mechanism

Case Report： Concurrent pulmonary thrombosis with systemic embolism： a case report

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2014年第9期15卷 838-844页

作者： Xiao-jie XIE Ju-bo jiang Jun jiang jian-an wang Department of Cardiology the Second Affiliated Hospital School of Medicine Zhejiang University Hangzhou 310009 China

Based on different mechanisms of blood coagulation, coexistence of venous thromboembolism and arterial thrombosis in a single individual is extremely rare in clinical practice. Both antiplatelet and anticoagulation therapy should be adopted for patients with arteriovenous embolism. Balancing the risk of ischemia and hemorrhage is especially challenging in these patients in order to achieve an optimal clinical benefit. We report on a 55-year-old female with acute pulmonary embolism （PE）, subsequently diagnosed as having acute myocardial infarction （AMI） and a cerebral infarction. Examinations had been carried out, excluding potential arteriovenous shunts, cancer, an- tiphospholipid syndrome and other common hypercoagulable states. A combination of an anticoagulant drug （rivaroxaban, an Xa inhibitor） and an antiplatelet agent （clopidogrel, an ADP receptor inhibitor） was prescribed with a β-blocker and atorvastatin. The embolus was gradually shrunk during the next 10 months, and then it turned back into expanding. During the 16 months＇ follow-up, an aneurysm of left ventricular apex was found through an echocardiogram and an angiotensin-converting enzyme inhibitor was administered. We conclude that combined anticoagulation and antiplatelet therapy significantly relieved the symptoms and improved the prognosis in patients suffering from arteriovenous embolism without any major clinical bleeding events.

关键词： Pulmonary thrombosis Cerebral infarction Acute myocardial infarction (AMI) Ventricular aneurysm

Neurofibroma discharged from the anus with stool:A case report and review of literature

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World Journal of Clinical Cases 2018年第11期6卷 455-458页

作者： Yu Miao jian--jiang wang Zhi--Ming Chen Jia--Lian Zhu Mu--Bin wang Sheng--Qiang Cai Department of Gastroenterology Jingjiang People's Hospital Department of General Surgery Jingjiang People's Hospital

Isolated neurofibromas that affect the gastrointestinal tract are rare and almost always manifest as neurofibro-matosis type 1 or multiple endocrine neoplasia type 2 b. In this paper, we present a case of a 24--year--old female with abdominal pain who discharged a neurofibroma in her stool without any blood on it. A colonoscopy showed multiple small polyps in the sigmoid colon and a nodule in the ileocecus. The pathology results and the immunohistochemical stains of the removed neoplasm from the ileocecus confirmed the diagnosis was a bowel neurofibroma. We report a rare case of ileocecal neurofibroma due to the patient's affected gastrointestinal tract, without any associated systemic syndrome other than a neurofibroma discharged in the stool.

关键词： Neurofibroma Isolated Gastrointestinal tract Ileocecus Clinical presentation

Monolithic 0–f Scheme-Based Frequency Comb Directly Driven by a High-Power Ti:Sapphire Oscillator

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Chinese Physics Letters 2020年第5期37卷 47-50页

作者： jian-wang jiang Shao-Bo Fang Zi-Yue Zhang jiang-Feng Zhu Hai-Nian Han Guo-Qing Chang Zhi-Yi Wei School of Physics and Optoelectronic Engineering Xidian UniversityXi'an 710071 Beijing National Laboratory for Condensed Matter Physics Institute of PhysicsChinese Academy of SciencesBeijing 100190 University of Chinese Academy of Sciences Beijing 100049 Songshan Lake Material Laboratory Dongguan 523808

A monolithic O-f scheme-based femtosecond optical frequency comb directly driven by a high-power Ti:sapphire laser oscillator is *** spectrum covering from 650 nm to 950 nm is generated from the Ti:sapphire oscillator with a repetition rate of 170 *** average output power up to 630 mW is delivered under the pump power of 4.5 W.A 44-dB signal-to-noise ratio(SNR)of the carrier-envelope phase offset(CEO)beat note is achieved under the resolution of 100 kHz and is long-term stabilized to a reference source at 20 *** integrated phase noise(IPN)in the range from 1 Hz to 1 MHz is calculated to be 138 mrad,corresponding to the timing jitter of 63 as at the central wavelength of 790 nm.

关键词： pump oscillator noise

Residual Levels and New Inputs of Chlorinated POPs in Agricultural Soils from Taihu Lake Region

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Pedosphere 2005年第3期15卷 301-309页

作者： GAOHong-jian jiangXin wangFang BIANYong-Rong wangDai-Zhang DENDjian-Cai YANDong-Yun InstituteofSoilScience ChineseAcademyofSciencesNanjing210008（China）

Selected persistent organochlorine pesticides (OCPs), including 1,1,1-trichloro-2,2-bis(p-chlorophenyl)ethane (DDT) and its principal metabolites 1,1-dichloro-2,2-bis(p-chlorophenyl)ethylene (DDE) and 1,1-dichloro-2,2-bis(p-chlorophenyl)e- thane (DDD), hexachlorocyclohexane (HCH) and its isomers (α-,β-, γ-, and δ-HCH), hexachlorobenzene (HCB), endo- sulfan, dieldrin, and endrin were quantified to determine current levels of organochlorine pesticides, to assess the eco- toxicological potential, and to distin…

关键词： agricultural soils chlorinated persistent organic pollutants (POPs) new input residual levels Taihu Lake region

热处理对自反应淬熄法制备低频LiZn铁氧体空心微珠的影响（英文）

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2018年第5期19卷 409-416页

作者： Xu-dong CAI jian-jiang wang Xiao-jun jiang Jun LING Yi XU Zhan-tong GAO The First Scientific Research Institute of Wuxi Wuxi 214035China The Seventh Department Mechanical Engineering CollegeShijiazhuang 050003China Cadres Office Mechanical Engineering CollegeShijiazhuang 050003China

目的:自反应淬熄法制备的LiZn铁氧体空心微珠密度小,低频吸波性能良好,但微珠表面晶型生长不充分。对其采用特定热处理工艺不仅可以使晶体充分发育,获得特定晶型,还可以实现对低频吸波性能的有效调控。本文旨在研究热处理工艺对LiZn铁... 详细信息

目的:自反应淬熄法制备的LiZn铁氧体空心微珠密度小,低频吸波性能良好,但微珠表面晶型生长不充分。对其采用特定热处理工艺不仅可以使晶体充分发育,获得特定晶型,还可以实现对低频吸波性能的有效调控。本文旨在研究热处理工艺对LiZn铁氧体空心微珠表面形貌、相结构和低频吸波性能的影响。创新点:1.通过热处理工艺,实现对LiZn铁氧体空心微珠表面形貌、相结构和低频吸波性能的有效调控;2.深入分析热处理工艺对LiZn铁氧体空心微珠低频吸波性能的改善机理。方法:1.通过工艺探索,确定热处理的详细工艺参数。2.通过扫描电子显微镜检测和X射线衍射分析,获得热处理前后LiZn铁氧体空心微珠的微观形貌(图2)和物相组成(图3)。3.通过矢量网络分析仪,获得热处理前后材料的电磁参数(图4);在此基础上对比其吸波性能(图5),并研究吸波影响机理。结论:1.采用240°C/min升温至1200°C并保温4 h的热处理后,LiZn铁氧体空心微珠表面晶粒明显长大;2.热处理后,微珠四个电磁参数均有所增大,低频吸波性能明显提高,吸收峰值向低频移动;3.表面多种形状微纳米晶粒的形成和长大可能是LiZn铁氧体空心微珠低频吸波性能得以提高的主要原因。

关键词： LiZn铁氧体热处理低频吸波性能