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Rare Metals 2024年第5期43卷 2241-2250页

作者： Pei-Sen wang Zi-Tong wang ya-ya Tan Peng Chen Xue-Cheng Zhang Lu-nan Zhang Yong-Ge Wei Lu-Bin Ni School of Chemistry and Chemical Engineering Yangzhou UniversityYangzhou 225002China Key Lab of Organic Optoelectronics and Molecular Engineering of Ministry of Education Department of ChemistryTsinghua UniversityBeijing 100084China State Key Laboratory of Natural and Biomimetic Drugs Peking UniversityBeijing100191China

An inorganicDorganic hybrid crystalline material(SiMo_(12)O_(40))[Cu(2,2'-bipy)_(2)]_(2)·2H_(2)O(Complex 1,2,2'-bipy=2,2'-bipyridine)was synthesized for the first time by using 2,2'-bipy and transition metal copper to convert Waugh-type polyoxometalate[MnMo_(9)O_(3)_(2)]_(6-)into a Keggin polyoxometalate structure[SiMo_(12)O_(40)]^(4-)under hydrothermal conditions in glass *** crystal tests and a series of characterizations were carried out on Complex *** structure of Complex 1 is composed of[SiMo_(12)O_(40)]^(4-)and[Cu^(Ⅱ)(2,2'-bipy)_(2)]^(2+).The five-coordinated Cu is connected to two 2,2'-bipy through CuDN bonds,forming an approximately square ***,Complex 1 exhibited good photocatalytic performance for methylene blue degradation and electrocatalytic nitrite reduction properties simultaneously.

关键词： Polyoxometalates Inorganic-organic hybrid materials Photocatalytic Electrocatalytic

A Review of Evaluation Studies on Tourism Suitability

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Asian Agricultural Research 2022年第12期14卷 36-38,41页

作者： ya nan wang Jiangxi Normal University Nanchang 330000China

In order to fully understand the development trends and achievements of tourism suitability evaluation at home and abroad, this paper reviews the relevant literature of tourism suitability evaluation from five aspects-tourism climate, tourism environment, tourism resources, tourism destination and evaluation indicator, and gives discussions.

关键词： Tourism Suitability Evaluation studies Review

Investigations on the general properties of biomass-based aldehyde tanned sheep fur for its selective post-tanning processing

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Journal of Leather Science and Engineering 2021年第1期3卷 54-66页

作者： Wei Ding ya-nan wang Jianfei Zhou Haiteng Liu Xiaoyan Pang Bi Shi China Leather and Footwear Research Institute Co.Ltd. Beijing 100015P.R.China College of Biomass Science and Engineering Sichuan UniversityChengdu 610065China Key Laboratory of Leather Chemistry and Engineering of Ministry of Education Sichuan UniversityChengdu 610065P.R.China

Dialdehyde sodium alginate(DSA)is an alternative chrome-free tanning material for fur *** obtain satisfactory resultant fur and provide suggestions for the usage of DSA in fur making,the general properties of DSA tanned sheep fur were systematically *** tanning mechanism of DSA was analyzed and it was verified that DSA was mainly combined with collagen fiber by forming Schiff base covalent bonds while supplemented by a small number of hydrogen bonds and ionic *** to the acid sensitivity of Schiff base structure,DSA tanned fur had poor resistance to acid rinsing but had excellent resistance to washing and good fatliquoring ***,it had good resistances to yellowing and *** being retanned by chrome tanning agent,the fur was capable of enduring a high-temperature dyeing process(68°C for 8 h).Overall,DSA tanned sheep fur had favorable properties under appropriate post-tanning processing conditions to manufacture light-colored or dark-colored fur products with desirable physical properties.

关键词： Sheep fur Dialdehyde sodium alginate Stability Post-tanning Chrome retanning

Moisture‑Electric–Moisture‑Sensitive Heterostructure Triggered Proton Hopping for Quality‑Enhancing Moist‑Electric Generator

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nano-Micro Letters 2024年第3期16卷 351-366页

作者： ya’nan yang Jiaqi wang Zhe wang Changxiang Shao Yuyang Han Ying wang Xiaoting Liu Xiaotong Sun Liru wang Yuanyuan Li Qiang Guo Wenpeng Wu nan Chen Liangti Qu Key Laboratory of Cluster Science Ministry of Education of ChinaKey Laboratory of Photoelectronic/Electrophotonic Conversion MaterialsSchool of Chemistry and Chemical EngineeringBeijing Institute of TechnologyBeijing 100081People’s Republic of China yangtze Delta Region Academy of Beijing Institute of Technology Jiaxing 314019People’s Republic of China Department of Chemistry Key Laboratory of Organic Optoelectronics&Molecular EngineeringMinistry of EducationTsinghua UniversityBeijing 100084People’s Republic of China

Moisture-enabled electricity(ME)is a method of converting the potential energy of water in the external environment into electrical energy through the interaction of functional materials with water molecules and can be directly applied to energy harvesting and signal ***,ME can be unreliable in numerous applications due to its sluggish response to moisture,thus sacrificing the value of fast energy harvesting and highly accurate information ***,by constructing a moisture-electric-moisture-sensitive(ME-MS)heterostructure,we develop an efficient ME generator with ultra-fast electric response to moisture achieved by triggering Grotthuss protons hopping in the sensitized ZnO,which modulates the heterostructure built-in interfacial potential,enables quick response(0.435 s),an unprecedented ultra-fast response rate of 972.4 mV s^(−1),and a durable electrical signal output for 8 h without any *** research provides an efficient way to generate electricity and important insight for a deeper understanding of the mechanisms of moisture-generated carrier migration in ME generator,which has a more comprehensive working scene and can serve as a typical model for human health monitoring and smart medical electronics design.

关键词： Moist-electric generators Grotthuss proton hopping Fast response Durable electrical output Personal health monitoring

Comparison of three transgenic Bt rice lines for insecticidal protein expression and resistance against a target pest, Chilo suppressalis （Lepidoptera： Crambidae）

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Insect Science 2016年第1期23卷 78-87页

作者： ya-nan wang Kai-Qie Ke Yun-He Li Lan-Zhi Han yan-Min Liu Hong-Xia Hua Yu-Fa Peng State Key Laboratory for Biology of Plant Disease and Insect Pests Institute of Plant Protection Chinese Academy of Agricultural ScienceBeUing 100193 College of Plant Science & Technology Huazhong Agricultural University Wuhan 430070 China

Two transgenic rice lines （T2A-1 and T1C-19b） expressing cry2A and crylC genes, respectively, were developed in China, targeting lepidopteran pests including Chilo suppressalis （Walker）（Lepidoptera： Crambidae）. The seasonal expression of Cry proteins in different tissues of the rice lines and their resistance to C. suppressalis were assessed in comparison to a Bt rice line expressing a crylAb/Ac fusion gene, Huahui 1, which has been granted a biosafety certificate. In general, levels of Cry proteins were T2A- 1 〉 Huahui I 〉 T1C-19b among rice lines, and leaf 〉 stern 〉 root among rice tissues. The expression patterns of Cry protein in the rice line plants were similar： higher level at early stages than at later stages with an exception that high Cry 1C level in T 1 C- 19b stems at the maturing stage. The bioassay results revealed that the three transgenic rice lines exhibited significantly high resistance against C. suppressalis larvae throughout the rice growing season. According to Cry protein levels in rice tissues, the raw and corrected mortalities of C. suppressalis caused by each Bt rice line were the highest in the seedling and declined through the j ointing stage with an exception for T1 C-19b providing an excellent performance at the maturing stage. By comparison, T1C-19b exhibited more stable and greater resistance to C. suppressalis larvae than T2A-1, being close to Huahui 1. The results suggest crylC is an ideal Bt gene for plant transformation for lepidopteran pest control, and T1C-19b is a promising Bt rice line for commercial use for tolerating lepidopteran rice pests.

关键词： Chilo suppressalis crylAb/Ac cryl C ery2A pest resistance transgenic rice

Structurally Diverse Sesquiterpenoids from Chloranthus henryi *** and Their Anti-inflammatory Activities

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Chinese Journal of Chemistry 2023年第10期41卷 1209-1225页

作者： Dan-yang Zhang Yun-Ran Hu Hui yang ya-nan wang Shuai Liu Yun-He Zou Jing-Jing Zhou Peng-Yu Zhuang Xiao-Xia wang Hang Liu School of Pharmacy North China University of Science and TechnologyTangshanHebei 063210China Department of Pharmacy Affiliated Drum Tower Hospital of Nanjing University Medical SchoolNanjingJiangsu 210008China State Key Laboratory of Bioactive Substance and Function of Natural Medicines Institute of Materia MedicaChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing 100050China China Pharmaceutical University nanjing Drum Tower Hospital NanjingJiangsu 210008China

In this study,27 new sesquiterpenoids:twenty monomers and seven dimers,with diverse structures,along with one known chlora-japonilide F(25)were isolated from the aerial parts of Chloranthus henryi ***,chlorahupetolides A(1)and B(2),two eudesmane-type merosesquiterpenoids with an undescribed C18 carbon framework,and chlorahupetene E(18)are the first example of dimers comprising two eudesmane sesquiterpenoids bridged by a four-membered ring in the *** struc-tures were characterized by nuclear magnetic resonance(NMR),electronic circular dichroism(ECD),and X-ray diffraction *** the RAW264.7 macrophages model of inflammation induced by LPS,compounds 12,18,and 25 significantly reduced NO production in a dose dependent manner and without *** mRNA expression of COX-2 was considerably inhibited by treatments with compounds 12,18,and 25.

关键词： Bioorganic chemistry Chloranthus henryi var.hupehensis Anti-inflammatory X-ray diffraction NMR spectroscopy

Essential role of isoelectric point of skin/ leather in leather processing

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Journal of Leather Science and Engineering 2022年第2期4卷 355-357页

作者： ya-nan wang Longyu Hu National Engineering Laboratory for Clean Technology of Leather Manufacture Sichuan UniversityChengdu 610065China College of Biomass Science and Engineering Sichuan UniversityChengdu 610065China.

Leather,made from animal hide or skin,is mainly composed of *** is a type of fibrous *** basic amino acid residues(lysine,arginine and histidine)and acidic amino acid residues(glutamic acid and aspartic acid)of the protein confer zwitterionic character to collagen,making the protein positively or negatively charged at different pH *** pH at which the net charge of collagen becomes zero is defined as isoelectric point(IEP,the value is labeled as pI).

关键词： residues character positively

Intestinal natural killer/T-cell lymphoma presenting as a pancreatic head space-occupying lesion:A case report

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World Journal of Gastrointestinal Oncology 2023年第1期15卷 195-204页

作者： ya-nan wang Yi-Miao Zhu Xiao-Ju Lei Yuan Chen Wan-Mao Ni Zheng-Wei Fu Wen-Sheng Pan College of Biotechnology and Bioengineering Zhejiang University of TechnologyHangzhou 310032Zhejiang ProvinceChina Department of Gastroenterology Zhejiang Provincial People’s HospitalPeople’s Hospital of Hangzhou Medical CollegeHangzhou 310014Zhejiang ProvinceChina Department of Endoscopy Center Zhejiang Provincial People’s HospitalPeople’s Hospital of Hangzhou Medical CollegeHangzhou 310014Zhejiang ProvinceChina Department of Pathology Zhejiang Provincial People’s HospitalPeople’s Hospital of Hangzhou Medical CollegeHangzhou 310014Zhejiang ProvinceChina Cancer Center Key Laboratory of Tumor Molecular Diagnosis and Individualized Medicine of Zhejiang ProvinceZhejiang Provincial People’s HospitalHangzhou Medical CollegeHangzhou 310014Zhejiang ProvinceChina Molecular Diagnosis Laboratory Zhejiang Provincial People's HospitalPeople's Hospital of Hangzhou Medical CollegeHangzhou 310014Zhejiang ProvinceChina

BACKGROUND Intestinal natural killer/T-cell lymphoma(NKTCL)is a rare and aggressive non-Hodgkin’s lymphoma,and its occurrence is closely related to Epstein-Barr virus *** addition,the clinical symptoms of NKTCL are not obvious,and the specific pathogenesis is still *** NKTCL may occur in any segment of the intestinal tract,its distinct location in the periampullary region,which leads clinicians to consider mimics of a pancreatic head mass,should also be ***,there remain huge challenges in the diagnosis and treatment of intestinal *** SUMMARY In this case,we introduce a male who presented to the clinic with edema of both lower limbs,accompanied by diarrhea,and abdominal *** ultrasound(EUS)showed well-defined homogeneous hypoechoic lesions with abundant blood flow signals and compression signs in the head of the *** the guidance of EUS-fine needle biopsy(FNB)with 19 gauge or 22 gauge needles,combined with multicolor flow cytometry immunophenotyping(MFCI)helped us diagnose *** treatments,the patient was prescribed the steroid(dexamethasone),methotrexate,ifosfamide,L-asparaginase,and etoposide chemotherapy ***,he died of leukopenia and severe septic shock in a local *** Clinicians should enhance their understanding of *** key factors,including EUS characteristics,the right choice of FNB needle,and combination with MFCI,are crucial for improving the diagnostic rate and reducing the misdiagnosis rate.

关键词： Intestinal natural killer/T-cell lymphoma Endoscopic ultrasound-guided fine-needle biopsy Multicolor flow cytometry immunophenotyping Diagnosis Case report

Mechanism of high-energy pulsed current-assisted rolling of 08AL carbon steel ultra-thin strip

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Journal of Iron and Steel Research International 2024年第2期31卷 416-427页

作者： Zhong-kai Ren ya-nan Xu Jia-zhao Chen He Li Rui-lin Yuan Zhen-hua wang Tao wang Xiao Liu College of Mechanical and Vehicle Engineering Taiyuan University of TechnologyTaiyuan030024ShanxiChina Engineering Research Center of Advanced Metal Composites Forming Technology and Equipment(Ministry of Education) Taiyuan University of TechnologyTaiyuan030024ShanxiChina National Key Laboratory of Metal Forming Technology and Heavy Equipment China National Heavy Machinery Research Institute Co.Ltd.Xi’an710016ShaanxiChina

To improve the plastic deformation performance of a 08AL carbon steel ultra-thin strip,a pulsed electric field was integrated into the plastic processing of the ultra-thin strip,and the effects of high-energy current on its deformation ability were ***-assisted tensile tests were employed,and the results clarified that the pulsed current could reduce the activation energy of faults and promoted dislocation slip within grains and at grain boundaries,leading to a decrease in the deformation resistance of the metal and an increase in its plastic *** the current density of 2.0 A/mm2,the yield strength,tensile strength,and elongation of the rolled sample reached 425 MPa,467 MPa,and 12.5%,*** the rolling process,it was found that the pulsed current promoted the dynamic recrystallization of the ultra-thin strip,reduced its dislocation density and deformation resistance,and promoted the coordinated deformation of the metal.

关键词： 08AL ultra-thin strip High-energy pulsed current Mechanical property Dislocation density Dynamic recrystallization

Characteristics of life-cycle carbon dioxide emissions of arterial highway maintenance and the influencing factors

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Advances in Climate Change Research 2024年第4期15卷 751-765页

作者： yao wang Yuan-Qing wang Shu-Juan JI Si-Jia SUN Shu-Hong MA ya-nan GAO Key Laboratory of Transport Industry of Management Control and Cycle Repair Technology for Traffic Network Facilities in Ecological Security Barrier Area Chang'an UniversityXi'an 710064China Guangzhou Aids to Navigation Office Southem Navigation Service CenterMaritime Safety AdministrationGuangzhou 51000China

With the focus of highway development transitioning from construction to maintenance,a comprehensive understanding of the characteristics and influencing factors of carbon dioxide(CO_(2))emissions from highway maintenance activities is crucial for formulating effective strategies to promote the low-carbon development of road ***,the quantitative relationships between CO_(2) emissions from highway maintenance schemes and factors such as pavement deterioration,traffic volume,and road grade remain unclear owing to a lack of compre-hensive,multi-category,and real *** real maintenance data from 340 arterial highway segments in China,this study conducts the life cycle assessment(LCA)to estimate CO_(2) emissions from maintenance activities and examines the primary emission sources among various structural layers and ***,multiple linear regression(MLR)analysis is conducted to investigate the impact of traffic volume,road grade,and pavement deterioration on CO_(2) emissions from maintenance projects,and factors influencing the early-stage degradation of pavement *** results demonstrate that average CO_(2) emissions from heavy rehabilitation projects are 6.97 times higher than those from medium rehabilitation *** from heavy rehabilitation projects exhibit a significantly negative linear relationship with the riding quality index(RQI)before maintenance(pnance(pnance(pnance(p<0.05).The early-stage d

关键词： Life cycle assessment(LCA) Arterial highway Maintenance Emission factor Pavement performance Traffic volume