MELITÆA ALMA STRECKER, AND ITS SYNONYMY

Identity of the previously unrecognized Chetogena flaviceps and its synonymy with C. scutellaris (Diptera: Tachinidae)

نمونه‌ی تایپ ناشناخته‌ی Chetogena flaviceps (Bigot) مورد مطالعه و هم‌نامی آن با گونه‌یChetogena scutellaris Wulp مورد تایید قرار گرفت. دستگاه جنسی نمونه‌ی تایپ ترسیم گردیده و توصیف مجدد گونه‌یC. scutellaris و صفات تشخیص حشره نر از سایر گونه‌ها آورده شده است.

ALMA Memo 402 Illumination Taper Misalignment and Its Calibration

The alignment of the tapered illumination with the antenna's primary dish will not be perfect, and for ALMA has been speci ed as having an rms error of 0.1 dish radii at all frequencies, and the resulting image errors are therefore independent of frequency. If uncorrected, simulations indicate the e ects of this illumination o set will dominate both pointing and surface errors for ALMA's wide e...

Asymmetric strecker reactions.

Catalytic enantioselective Strecker reactions and analogous syntheses.

3.1. Overview 2807 3.2. Chiral Aluminum(III) Complexes as a Catalyst 2808 3.2.1. Aluminum(III)-Salen-Based Catalysts 2808 3.2.2. Aluminum(III)-Binaphthol-Based Catalysts 2810 3.3. Chiral Titanium(IV) Complexes as a Catalyst 2814 3.3.1. Titanium(IV)-Peptide-Based Catalysts 2814 3.3.2. Titanium(IV)-Diol-Based Catalysts 2817 3.4. Chiral Zirconium(IV) Complexes as a Catalyst 2818 3.4.1. The Catalyt...

ALMA Chapter 3.1: Calibration issues for ALMA

The precision imaging to be attained by the ALMA will be achieved through accurate calibration. The types of calibration are summarized in Table 3.1. Table 3.1 ALMA Calibration Requirements. Pointing 0.6" absolute Primary Beam 2-3% Baseline Determination 0.1 mm Flux Calibration 1% absolute flux accuracy goal Phase Calibration 0.15 radian at 230 GHz Bandpass Calibration 10000:1 to 100000:1 Polar...