检索结果-南通市图书馆

Gastrointestinal stromal Tumor Mimicking Ovarian Tumor

在线全文

学校读者我要写书评

暂无评论

Open Journal of Obstetrics and Gynecology 2015年第11期5卷 588-591页

作者： Priyanka Kadam Pariseema s. Dave Meeta h. Mankad Department of Gynaecologic Oncology Gujarat Cancer and Research Institute Ahmedabad India

Background: Gastrointestinal stromal tumors (GIsT) are rare mesenchymal tumors that may mimic ovarian tumor on presurgical testing. They are most often located in the stomach and proximal small intestine. The gross appearance of GIsTs is highly variable. These tumors are usually asymptomatic, often discovered accidentally during endoscopic or radiologic examinations. Case Report: We reported a case of 55-year-old post menopausal woman who presented to us as ovarian mass which turned out to be malignant epithelioid gastrointestinal stromal tumor intraoperatively and by immunohistochemistry. Conclusion: In the patients with a pelvic mass, especially if unusual symptoms and laboratory data being not compatible with gynecological disease, the possibility of diseases other than a gynecologic disease has to be considered. Considering that only few patients with gastrointestinal stromal tumors have been reported in the obstetrical and gynecological literature, the awareness of such an entity by the obstetricians-gynecologists is necessary in order to facilitate coordinated approach with the general surgeons and oncologists for the optimal care of the patients.

关键词： Gastrointestinal stromal Tumor

Is the global sea surface temperature rise accelerating?

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Geodesy and Geodynamics 2018年第6期9卷 432-438页

作者： h.Baki Iz Division of Geodetic science School of Earth Sciences The Ohio State University Columbus OH 43210 USA

This is an exploratory investigation to search for the presence of an acceleration in global sea surface temperature rise, which is essential to identify anthropogenic contributions to the climate change during the 20 th century. A weighted statistical model with an acceleration parameter was built progressively to reconstruct the variations in the global sea surface temperature data considering statistically significant confounders and autoregressive disturbances in the process. From the preliminary residual analysis of a weighted regression model, emerged a parsimonious model with first order autoregressive disturbances with a deterministic trend, acceleration and periodicity of 69 yr and its 138 yr subharmonic. The final model solution, selected from 29 alternative combinations of the model parameters using Mallows' s Cp metric, revealed a statistically significant deterministic trend, 0.40 ± 0.03C/c(p he global sea surface temperature variations. The combined yearly trend and acceleration in global sea surface temperature as predicted by the model,exhibit a strong correlation with the yearly increase in the global CO^2 concentrations observed during the 20th century.

关键词： Climate change First order autoregressive model Global sea surface temperature Global sea surface temperature acceleration Global CO^2 concentration

新型蓝色有机发光材料苯-吡啶共聚物的光电性能

在线全文

学校读者我要写书评

暂无评论

功能材料 2003年第1期34卷 80-82页

作者：佟拉嘎蹇锡高吉野胜美 h.s.O.Chan s.CNg 大连理工大学高分子材料系辽宁大连116012 日本国立大阪大学工学部电子工学科新加坡国立大学化学系

　报道了4种新型有机发光材料苯-吡啶共聚物在室温下的光吸收、光致发光特性和能带结构特点。用4种材料共聚物设计了单层发光元件,并在液氮中(77K)测定了其发光性能。4种材料均得到了蓝色发光。

关键词：蓝色有机发光材料苯-吡啶共聚物光电性能导电聚合物电化学掺杂光致发光电致发光

Piezoelectric study of 0.65Pb(Mg_(1/3),Nb_(2/3))O_3-0.35PTO_3 Nanopoder Ceramics

在线全文

学校读者我要写书评

暂无评论

Journal of Electronic science and Technology of China 2010年第1期8卷 16-19页

作者： M.Ghasemifard s.M.hosseini h.Ghasemifard Department of Physics(Materials and Electroceramics Laboratory) Ferdowsi University of MashhadMashhadIran Department of Engineering Islamic Azad University of MashhadMashhadIran

The piezoelectric properties of relaxor ferroelectric 0.65Pb（Mg1/3,Nb2/3）O3-0.35PTO3 ceramic prepared by a sol-gel combustion method have been investigated as function of sintering temperature. The results show that its phase structure is near the morphoteropic phase boundary （MPB）, and outstanding electrical properties are obtained with this composition. The highest piezoelectric coefficients were observed for the samples sintered at temperature of 1200℃. In comparison with pure PMN （（1-x）Pb（Mg1/3Nb2/3）O3- （x）PbTiO3）, the substitution of 35% PT results in the decrease of sintered temperature and improved the relaxation behavior.

关键词： Dielectric Gel-combustion piezo- electric PMN-PT.

Effect of Thermal Treatment of the hydroxyapatite Powders on the Micropore and Microstructure of Porous Biphasic Calcium Phosphate Composite Granules

在线全文

学校读者我要写书评

暂无评论

Journal of Biomaterials and Nanobiotechnology 2013年第2期4卷 114-118页

作者： David s. h. Lee Yuni Pai steve Chang Department of Research and Development SigmaGraft Brea USA.

The effect of thermal treatment of the hydroxyapatite powders on the micropore structure of porous biphasic calcium phosphate (BCP) granules was examined. The porous BCP granules could be attained through mixing and sintering/fracturing thermally treated 60 wt% hydroxyapatite powders and calcined 40 wt% β-tricalcium phosphate powders. The observed scanning electron microscopy (sEM) morphologies showed that the density of micropores (0.1 - 2.0 μm) including interconnected micropores of the porous BCP granules mixed with hydroxyapatite powders thermally treated at 900°C was significantly improved and the composite particles of porous BCP granules were homogeneously mixed and distributed. This result indicates that the particles of hydroxyapatite powders that have a tendency to agglomerate at a room temperature were well isolated and dispersed through thermal treatment processing before mixing with calcined β-tricalcium phosphate powders. The microstructural characterizations such as phase purity and composition of porous BCP granules were performed and verified by X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FT-IR) analysis.

关键词： BCP Composite hydroxyapatite Thermal Treatment Micropore structure

End of the “American Century”

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Economic and Political studies 2013年第1期1卷 79-88页

作者： ALLAN h.MELTZER Carnegie Mellon University and the American Enterprise Institute

At the start of the post WWII era,the United states led the world to establish a political and economic order for freer trade,military cooperation,and economic development in low income *** program was far from perfect,but it gave the world decades of growth,expansion,and increased freedom and *** people in more countries raised their living standards more significantly than in any other period of human *** trade and avoidance of major wars benefited people *** *** is nevertheless much weaker *** cannot agree on trade treaties to remove further barriers,and the growing size and importance of several countries with diverse interests make agreements harder to *** in parts of the world restricts the spread of markets.A likely outcome will be slower growth of the world economy in the future.

关键词： American Century international economic institutions political stalemate

study of the CKM angleγsensitivity using flavor untagged B_(s)^(0)→D^(+)^(0)Ф decays

在线全文

学校读者我要写书评

暂无评论

Chinese Physics C 2021年第2期45卷 56-92页

作者： D.Ao D.Decamp W.B.Qian s.Ricciardi h.sazak s.T’Jampens V.Tisserand Z.R.Wang Z.W.Yang s.N.Zhang X.K.Zhou University of Chinese Academy of sciences Beijing 100049China UnivGrenoble Alpes UnivSavoie Mont BlancCNRSIN2P3-LAPPAnnecyFrance sTFC Rutherford Appleton Laboratory DidcotUnited Kingdom UniversitéClermont Auvergne CNRS/IN2P3LPCClermont-FerrandFrance Center for high Energy Physics Tsinghua UniversityBeijing 100084China school of Physics state Key Laboratory of Nuclear Physics and Technology Peking UniversityBeijing 100871China

A sensitivity study on the measurement of the CKM angle γ from B_(s)^(0)→D^(+)^(0)Ф decays is conducted us-ing the D-meson reconstructed in the quasi flavour-specific modes Kπ,K3π,and Kππ^(0),as well as CP-eigenstate modes KK and m,where the notation DO corresponds toa D0 or D0 *** LhCb experiment is presented as a use case.A statistical uncertainty of approximately 8°-19°can be achieved with the pp collision data collcted in the LhCb experiment from 2011 to *** sensitivity to r should be of the order 3°-8°after accumulating 23 fb^(-1) of pp collision data by 2025,whereas it is expected to improve further by 300 fb^(-1) by the second half of the 2030 *** accuracy is dependent on the strong parameters r and og,which together with ydescribe the interfer-ence between the leading ampliudes of the B_(s)^(0)→D^(+)^(0)Ф decays.

关键词： sensitivity study CKM angleyγ B_(s)^(0)→D^(+)^(0)Фdecays

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Rescuing Love from the Nation： Love, Nation, and self in Xu Xu＇s Alternative Wartime Fiction and Drama

作者： h. s. TsIEN C. M. ChENG Daniel and Florence Guggenheim Jet Propulsion Center. California Institute of Technology Pasadena Calif.

When a thin cylindrical shell of uniform thickness is very rapidly heated by hot high-pressure gas flowing inside the shell, the temperature of material decreases steeply from a high temperature at the inside surface to ambient temperatures at the outside ***’s modulus of material thus *** purpose of the present paper is to reduce the problem of stress analysis of such a cylinder to an equivalent problem in conventional cylindrical shell without temperature gradient in the *** equivalence concept is expressed as a series of relations between the quantities for the hot cylinder and the quantities for the cold cylinder. These relations give the similarity law whereby strains for the hot cylinder can be simply deduced from measured strains on the cold cylinder and thus greatly simplify the problem of experimental stress analysis.

关键词：

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

Frontiers of Literary studies in China-selected Publications from Chinese Universities 2014年第1期8卷 126-153页

作者： Frederik h. Green Department of Foreign Languages and Literatures San Francisco State University SanFrancisco CA 94132 USA

This essay explores the wartime fiction and drama of Xu Xu （徐訏, 1908-80）, one of China＇s most widely read authors of the Republican-period （1912-49）. By placing Xu Xu＇s popular spy fiction into the context of literary production during the war years, the essay illustrates that Xu Xu＇s oeuvre protested against an ideology of moral collectivism in which the individual had to submit self to a higher political authority that professed to represent the will of the nation. Through a literary aesthetic that largely defied the demands for a literature of resistance that subjugated the individual self to the national collective, Xu＇s ostensibly autobiographical I-novels brought comfort to urban readers whose personal salvation was rarely addressed in official wartime narratives depicting the nation in peril and calling for collective sacrifice. At the same time, Xu＇s confident cosmopolitan heroes satisfied urban readers＇ desire for political agency in the raging international conflict. Furthermore, this paper explores Xu Xu＇s wartime drama through which Xu attempted to piece together a quasi-existentialist vision of the individual and human experience that was revealed only under the extreme condition of war.

关键词： alternative wartime fiction and drama Republican-period popular culture Cosmopolitanism Nationalism self