无双的

Most available Identity-based Authenticated Key agreement protocols require expensive bilinear pairing operation. This paper proposes a pairing-free ID-AK protocol from additive elliptic curve group.

摘要鉴于目前大多数基于身份的认证密钥协商协议需要复杂的双线性对运算，该文利用椭圆曲线加法群构造了一个无双线性对的ID-AK协议。

Results: In the 23 cases of disease group, 16 cases were unilateral and 7 cases were bilateral. X-ray examination showed local prominence between ischium and pubis in all cases. Lamellar changes of the bone inhomogeneous in density with round translucence were found in 8 cases accompanied with intact cortex. Mild osseous hyperplasia was found in 8 cases without changes of periosteum and soft tissues. CT examination of 8 cases presented with local prominence between iscbium and pubis, translucence, cataclasm, discontiguous osteal cortex with irregular ends, sclerotic medullary cavity of honey surroundings, but no sequestration and changes of periosteum and soft tissues. The above-mentiooed X-ray features appeared in 14 cases among normal group, bilateral in 3 cases.

结果：病变组23例中，16例为单侧，7例为双侧。X线表现为坐骨耻骨结合处局限性骨膨隆，8例有层状改变，病变区内密度不均，有类圆形低密度透光影，骨皮质完整，8例周围骨质轻度增生，未见骨膜反应和软组织改变。8例CT表现为坐骨耻骨结合处局部膨大，其内有低密度透光区，有碎裂，骨皮质连续性中断，断端边缘欠整齐，邻近的髓腔轻度硬化，无明显的死骨和骨膜反应，邻近的软组织正常；正常组中14例出现上述X线改变，其中3例为双侧性。

It is acceptable to open two notrump (or two clubs, intending to rebid in notrump) with an unstopped doubleton, a five-card major, a six-card minor, or five-four distribution including a five-card minor.

2NT开叫(或2 后再叫无将)容许持无挡的双张，一门五张高花，一门六张低花或有一门五张低花的5-4-2-2牌型。

Characterized with the combination of origin and phenomena, its theoretical method achieves the recognition of the formlessness and iconlessness from the general emphasis on the analysis of form and icon, and then obtains the whole grasp of the double operation of Wu and You. Thus a new way and method is establishedto explore the myth of the universe and human life and to reveal the essence of the relationship between human and nature, displaying before humans eyes a fuller and completed theoretical system of Human-Nature-Unity of traditional Chinese culture quality.

其理论方法以根源与现象的结合为基本特征，从一般重于有形有象的分析，突破到对无形无象的认识，进而达到无有双运的整体掌握，为探索宇宙人生奥秘，揭开人天关系的本质开辟出新的道路和方法，把一个具有中国传统文化特质，更加充分、更为完备的人天整体理论体系展现在人类面前。

Hairy roots were induced from tobacco leaves with Agrobacterium rhizogenes LBA1334 harboring agropin type PRil855 and binary vector PIG121HM carrying a kanamycin resistant gene nptll and GUS gene and the good hairy root clones were selected. The root with many root hairs and branches grew vigorously toward all the direction on MS medium without plant hormone and on kanamyain containing medium (km:30mg/L). The structure of the hairy root tip is different from that of ordinary root. Witch was not typical root cap maybe the main cause of losing the geotropism of hairy root. Plantlet regenerated from hairy root when cultured on Ms medium without plant hormone. The nicotine content of the hairy root was little higher than that in the natural roots.

本研究通过发根农杆菌工程菌LBA1334(含有野生型pRi1855质粒和pIG121HM双元载体质粒，编码NPTⅡ基因和GUS基因)转化烟草沙姆逊，获得了具有卡那霉素抗性烟草发状根，并筛选出良好的单克隆株系，该发状根具有典型的发状根特性(多根毛、多分支、在无激素培养基上快速生长)，通过根尖压片分析，烟草发状根不具备典型的根冠；发状根中烟碱含量1.61％稍高于与天然栽培品种母体根的含量(1.5％左右)，发状根向培养液中释放烟碱，释放量最多时占总烟碱量的81.1％；在无激素的培养基上获得了再生植株。

The effects of the linear birefringence and incident polarizing angle upon the performance of a bulk glass optical current sensor are derived and analyzed, a modulation formula to describe the influences of the linear birefringence to the output signal of the sensor is given.The effect of the incident polarizing angle upon the performance of the system and the condition to determine if or not it can exert the influence are also given.

对线性双折射及入射起偏角对光学玻璃电流传感器输出特性的影响进行了理论推导与分析，给出了光学玻璃电流传感器在非理想状态下线性双折射对输出电压的调制函数的数学表达式，并给出了入射起偏角对系统影响的数学表达式及其对系统有无影响的条件。

Yields from chiral bisoxazolines (5a) with diethyl oxalate using NaOCH〓 as base for the first time. The structures of chiral multioxazolines and their intermediates, multi (β-hydroxylamide) s, were characterized by 〓H NMR, IR, mass spectra and elemental analysis. The catalytic activities and enantioselectivities of chiral multi (β-hydroxylamide) s (4) and chiral multioxazolines (5～8) were investigated by using acetophenone and β-acetonaphthone as former chiral ketone, KBH〓 or NaBH〓 as reductive reagent in chapter three.

在此基础上，对合成方法作了创新，以羧酸或酯为原料，在无催化剂的条件下与手性α-氨基醇反应，通过回流分水或脱醇的方法，一步反应合成了手性多噁唑啉（5～8），产率为89.2%～98.4%；以手性双噁唑啉（5a）为原料，在NaOCH〓的作用下，与草酸二乙酯反应，首次合成了呋喃类双嗯唑啉（6a），产率为72.9%～75.6%。

The patient was a 66-year-old male who presented with paraparesis. On examination, strength was 5/5 in both upper extremities and 3-4/5 in both lower extremities. Pricking sensation was relatively retarded below the sixth thoracic vertebra on both sides. Fine-touch sensation was limited below the ninth thoracic vertebra on the right side and below the eleventh thoracic vertebra on the left side. Responses to vibration and joint position sense were well preserved. Deep tendon reflexes were increased in his legs. He had voluntary anal contraction and preserved anal and bulbocavernous reflexes. MRI revealed dissection of the descending aorta from T4 to T10 levels with thrombus present in the false lumen, and the thoracic cord was marked atrophy, especially from T6 to T8 levels. To the best of our knowledge, no such case had been reported so far.

这是一位66岁的男性病患，到院时以下半身轻截瘫来表现，检查后发现其双上肢肌力为5/5而双下肢肌力则为3-4/5，刺痛觉在两侧第六胸椎以下异常，轻触觉在右侧第九胸椎与左侧第十一胸椎以下异常，震动觉与本体感觉则皆属正常，深肌腱反射在两下肢均有异常增强的情形，肛门的主动收缩正常且肛门反射与球体海绵体肌反射均正常，核磁共振影像显示降主动脉在T4到T10处有剥离的情形并於伪腔内发现血栓，此外，病患之胸部脊髓则有明显萎缩的现象，以T6到T8处最为明显，就目前可见的文献资料，并无类似的报告被提出。

Roman and Egyptian transatlantic voyages - In 1975 two intact amphorae were recovered from the bottom of Guanabara Bay, near Rio de Janeiro, Brazil. In 1981 archeologist Robert Marx discovered thousands of pottery fragments in the same locality, including 200 necks from amphorae.

罗马和埃及的大西洋彼岸航行——1975年，在巴西里约热内卢附近的瓜纳巴拉湾海底发现了两个完整无缺的双耳细颈椭圆土罐。1981年，考古学家罗伯特麦克斯在同一地点发现了上千块陶瓷碎片，包括200块是来自双耳细颈椭圆土罐的颈部。

Although there was a great increase in competition after the market changed from a monopoly to a duopoly, neither side dared to take rash steps for fear of the situation fermenting into a seesawing, never-ending cutthroat price war that would bring injury and defeat to both sides.

当市场由一家独占变成两家双占之后，竞争程度尽管大幅提高，任何一家都不敢轻举妄动，以免不幸酿成你来我往、无休无止的所谓割喉式的价格战，而使得双方两败俱伤。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失